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Mack Defense, LLC 7310 Tilghman St., Ste 600 ALLENTOWN PA 18106 USA

UEI: SLED_080C5429BBC30983

Mack Defense, LLC 7310 Tilghman St., Ste 600 ALLENTOWN PA 18106 USA is a federal contractor, registered under UEI SLED_080C5429BBC30983. It has been awarded $17,774,800 across 1 federal contract. Primary work spans Motor Vehicle Gasoline Engine and Engine Parts Manufacturing. Top awarding agencies include Fci Bastrop.

Contact Information

Registration and classification details

Registration

UEI Code

SLED_080C5429BBC30983

Federal Contracting Overview

Award totals, agency breakdown, NAICS distribution, and geographic footprint.

Key Performance Metrics

Awards Count

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Award Analytics & Distribution

Awards by Agency

Fci Bastrop$17.8M100%

Awards by NAICS

336310 - Motor Vehicle Gasoline Engine and Engine Parts Manufacturing$17.8M100%

Awards by Agency Over Time

Awards by Place of Performance

Open opportunities in Mack Defense, LLC 7310 Tilghman St., Ste 600 ALLENTOWN PA 18106 USA's top NAICS codes and agencies

PIN ASSEMBLY, PUSHThe contract pertains to the procurement of two units of a PIN ASSEMBLY, PUSH, identified by NSN 4820-00-036-3865, under solicitation SPE7MC-26-T-136F, issued by the Defense Logistics Agency. Delivery is required within 20 days after order placement, with a specified original delivery date of July 10, 2026, and all items must be shipped FOB destination to the USNS SALVOR (ARS 52) at FPO AP 96678, with inspection and acceptance also occurring at the destination. Packaging must strictly conform to MIL-STD-2073-1E with packaging code U, preservation method CLNG/DRY:1, wrap material JA, and unit container A1, while intermediate packaging uses EC containers. Marking must adhere to MIL-STD-129, including bar-coded data matrix symbols for logistics tracking, and no special marking is required. Mercury or mercury-containing compounds are strictly prohibited in packaging, preservation, and marking unless specifically exempted for functional uses in batteries, instrument sensors, weapon systems, or NAVSEA-specified reagents, with portable mercury-containing devices requiring shock-proof construction and a secondary containment barrier. All materials must comply with the DLA Master List of Technical and Quality Requirements and avoid any introduction of hazardous substances as mandated by DFARS 252.223-7001 and FAR 52.223-3. The contract includes mandatory compliance with a suite of federal and defense acquisition regulations, including clauses on combating human trafficking, employment eligibility verification, sustainable products, hazardous material identification, cybersecurity safeguards, and the prohibition of covered defense telecommunications equipment from certain Chinese entities. Contract performance is subject to electronic invoicing through Wide Area WorkFlow (WAWF), and payment is governed by streamlined procedures with accelerated payments available to small business subcontractors. Offerors must hold a valid Unique Entity ID and disclose socioeconomic status as a small business or under programs such as HUBZone, SDVOSB, WOSB, or SDB, along with complete representations under FAR and DFARS terms. The solicitation is issued under NAICS code 336310, with no set-aside designation, and responses must be submitted electronically via the DIBBS portal by the deadline of July 30, 2026. The procurement applies simplified acquisition procedures

Defense Logistics Agency

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GENERATOR, ENGINE ACCESThe contract pertains to the procurement of five generator engine accessories with NSN 2920-01-595-9464 and part number 4982228 from CUMMINS INC, under solicitation SPE7L1-26-T-880Y. Delivery is required within five days of contract award, with FOB origin terms, zero tolerance for quantity variance, and inspection and acceptance occurring at the point of origin. All items must be packaged in accordance with MIL-STD-2073-1E, using packing code Q, level B, and marked per MIL-STD-129 with no special marking required; palletization must comply with DLA packaging standards. The units are to be shipped to the General Depot of Naval Supplies in Kaohsiung, Taiwan, with freight details governed by DLA procedural notes and no single freight forwarder assigned. The technical and quality requirements referenced are drawn from the DLA Master List of Technical and Quality Requirements, with the applicable revision determined by the solicitation or award date depending on acquisition size. The purchase price is set at $5.00 per unit for a total of $25.00, and the required delivery date is July 28, 2026, with the solicitation posted on July 27, 2026 and responses due by August 7, 2026. The contracting officer is Kristina Derry of the Department of Defense, Land Supply Chain, and the contract is classified under NAICS code 336310.

LAND SUPPLY CHAIN

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VALVE, RELIEF, PRESSUThe contract pertains to the procurement of two relief pressure valves with NSN 4820-01-629-6894 and part number 11.1839/MLCP03AXAXB1V0NS, supplied by Emerson Automation Solutions and Proconex Inc. Delivery is required within five days of award, with shipment FOB origin and inspection and acceptance occurring at the destination. The unit of issue is each, with no allowable variance in quantity. All packaging must comply with MIL-STD-2073-1E, including specific methods for preservation, wrapping, cushioning, and containerization, and marking must adhere to MIL-STD-129 with no special marking required. The valves are to be delivered to Norfolk Naval Shipyard in Portsmouth, VA, with shipment directed via the fastest traceable means, explicitly excluding parcel post. The contract references the DLA Master List of Technical and Quality Requirements for applicable technical and quality standards identified by R or I numbers. The solicitation number is SPE7M0-26-T-019R, with a response deadline of August 7, 2026, and the contract falls under NAICS code 336310, administered by the Department of Defense through the Maritime Supply Chain ESOC Buys office. The point of contact for inquiries is Abaigael Masterson, with the original required delivery date set for December 8, 2025.

MARITIME SUPPLY CHAIN ESOC BUYS

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FILTER, FLUIDThis contract is for the procurement of fluid filters under solicitation SPE7L3-26-U-0653, issued by the Department of Defense through the Land Supplier Operations Vehicle Support office. The item is identified by NSN 2910-01-644-0410 with a total quantity of 162 units, each unit priced at $162.00, resulting in a total contract value of $26,244. The delivery schedule requires shipment within 74 days, with delivery terms set at FOB origin, and inspections and acceptance occurring at the destination. The quantity is fixed with zero variance allowed, and the contract is structured as a total small business set-aside under NAICS code 336310. Packaging must comply fully with DLA’s Master List of Technical and Quality Requirements, which take priority over ASTM D3951, and all packaging and labeling must adhere to MIL-STD-129. Palletization is governed by RP001: DLA Packaging Requirements for Procurement, and government identification must be removed from non-accepted supplies. The contract references multiple approved part numbers from different manufacturers, including PTI Technologies Inc., PALL AeroPower Corporation, and Falls Filtration Technologies Inc., with the unit of issue being each unit. The contract specifies that technical and quality requirements incorporated by reference are drawn exclusively from the DLA Master List accessible via the official DLA eProcurement webpage, with the revision in effect on the solicitation issue date controlling for this simplified acquisition. All packaging must be marked with the correct Unit of Issue and Quantity per Unit Pack as specified in the contract. The designated point of contact for inquiries is Stephen Weaver, reachable via phone and email, and the solicitation response deadline is August 11, 2026. The solicitation was posted on July 27, 2026, and bidders must access the full details via the DIBBS platform. The contract does not guarantee purchase of the estimated quantity, as the final obligation rests with the IDA, and delivery must comply fully with DoD standardized unit of issue definitions.

LAND SUPPLIER OPNS VEHICLE SPT

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O-RINGThe contract pertains to the procurement of six O-rings with NSN 5331-01-535-1192 under solicitation SPE7L5-26-T-4641, with a delivery requirement of 53 days ADO. These O-rings are classified under Federal Supply Classifications 5330/5331 and are subject to strict packaging mandates requiring medium-duty, waterproof, greaseproof, and opaque packaging conforming to MIL-DTL-117, Type II, Class C, Style 1, to protect against UV degradation. This packaging standard applies to all delivery types including direct vendor delivery, foreign military sales, and stock shipments. The item must be free of asbestos and any ozone-depleting chemicals, with mercury or mercury-containing compounds prohibited unless specifically exempted for functional components like batteries, fluorescent lamps, or instrument sensors under NAVSEA guidelines, in which case double containment and shockproof design are mandatory. Supply chain traceability documentation must be retained by the contractor per DLA Procurement Note C03 (August 2016), and government identification must be removed from non-accepted supplies. All technical and quality requirements referenced by R or I numbers are governed by the DLA Master List of Technical and Quality Requirements, with applicable revisions determined by the solicitation or award date depending on acquisition size. The point of contact for this solicitation is Shane Harrington, and performance is to be delivered to New Cumberland, Pennsylvania, with responses due by August 7, 2026.

LAND SUPPLIER OPNS ENGINES

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PUMP ASSEMBLY,FUELThis contract solicitation, identified as N0010426QXB89, seeks repair services for the PUMP ASSEMBLY,FUEL under a fixed-price arrangement, with emphasis on strict adherence to military standards and government-imposed performance timelines. The contractor must provide a firm-fixed-price, not-to-exceed, or estimated quote specifically for repair, excluding test and evaluation fees unless tied to a final determination of报废或返修状态. The repair turnaround time is mandated at 265 days from receipt of the asset at the contractor’s facility, as recorded in the Commercial Asset Visibility system, with penalties applied per unit per month for late delivery unless delays are excusable. The contractor must also commit to a monthly throughput capacity and adhere to an induction expiration date of 365 days post-award, beyond which repairs require bilateral consent. All repairs must comply with MIL-STD-130 marking requirements, DFARS 252.211-7003 for Item Unique Identification, and the government’s source inspection and packaging standards, including MIL-STD-2073. Only authorized repair sources may be awarded, and proof of authorized distributor status must accompany the proposal. The contract mandates full compliance with Buy American requirements, cybersecurity maturity certification, and small business subcontracting obligations, along with strict documentation and recordkeeping practices. All quotes must include unit and total repair pricing, RTAT duration, price type designation, CAGE codes for award, inspection, and shipping locations, as well as the basis of pricing and a minimum 90-day expiration. Price reductions are enforceable for unexcused RTAT delays, capped at a specified maximum per unit per month, without precluding government remedies such as termination for default. Technical adherence to manufacturer specifications, drawings, and approved repair procedures is required, with any design or part number changes subject to prior written approval. Documentation distribution is governed by strict classification and dissemination codes per OPNAVINST 5510.1, and all submissions must be electronically sent to the designated point of contact. Responses are due by August 10, 2026, and awardees must operate under the contract’s quality assurance, inspection, and logistics framework as managed through Navy CAV or Proxy CAV.

Navsup Weapon Systems Support Mech

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29--FILTER,FLUIDThe contract solicitation seeks quotations for 162 units of NSN 2910016440410, FILTER, FLUID, under a total small business set-aside for NAICS code 336310, with the Department of Defense’s DLA Land and Maritime acting as the procuring agency based in Columbus, Ohio. Responses must be submitted electronically by the deadline of August 11, 2026, and only approved sources—identified by their part numbers 00736 R9W2523, 05228 7597935-101, and 18350 AC-A687F-40—are eligible. This solicitation may lead to an indefinite delivery contract with a one-year term or until aggregate orders reach $350,000, with a guaranteed minimum of 24 units, and deliveries will be distributed to multiple DLA depots across CONUS and OCONUS via containerized consolidation points. No hard copies of the solicitation are available; all information must be accessed through the provided online portal, and no specifications, plans, or drawings are provided. The point of contact for inquiries is listed via email, and only responsible sources that timely submit electronic quotes will be considered.

DLA Land And Maritime

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48--VALVE,RELIEF,PRESSUThe contract pertains to the procurement of two relief pressure valves with NSN 4820016296894, to be delivered to the Norfolk Naval Shipyard GF within five days of award. Only approved sources listed by their unique identifiers are eligible to respond, and all quotes must be submitted electronically through the solicitation portal; hard copies are not accepted. No specifications, plans, or drawings are provided, and responsible sources are encouraged to submit quotations as long as they are received before the deadline. The solicitation, identified as SPE7M026T019R, was posted on July 27, 2026, with a response deadline of August 7, 2026. It falls under NAICS code 336310 and is managed by the DLA Land and Maritime office in Columbus, Ohio, under the Department of Defense. Questions must be directed via email to the designated buyer, with further details accessible through the provided SAM.gov link.

DLA Land And Maritime

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Exhaust Manifold Manufacturing and SupplyThe contract involves the manufacture and supply of exhaust manifolds designated by NSN 2815-00-920-2073, specifically for CUMMINS NTC-400 engines installed in M915 to M920 tactical military vehicles. Delivery must be made FOB origin with a strict turnaround time of eleven days from the date of award, emphasizing the urgency and operational readiness requirements of the end-use application. The work is classified under NAICS code 336310, which corresponds to engine and engine parts manufacturing, and is issued as a subcontract under the Department of Defense's Land Supplier Operations Engines division. The solicitation was posted on July 26, 2026, with a response deadline of August 6, 2026, indicating a compact procurement window to ensure rapid vendor selection and fulfillment. The place of performance is listed as New Cumberland, Pennsylvania, with a ZIP code of 17070-5002, suggesting the deliverables may be coordinated through a designated logistics or distribution hub within the defense supply chain. While no specific set-aside status or point of contact is provided, the contract is accessible via the DIBBS platform, indicating it is part of the Defense Logistics Agency’s transparent procurement system for defense contractors.

LAND SUPPLIER OPNS ENGINES

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TANK, RADIATOR, OVERFThe contract pertains to the procurement of one radiator overflow tank with NSN 2930-01-584-8602 and part number P/N 12421897, supplied by JOHNSON WELDED PRODUCTS, INC DBA J, under solicitation SPE7L1-26-T-876Q. Delivery is required within five days of award, with shipment originating at the supplier’s location and delivered FOB origin to the designated military recipient at Fort Riley, Kansas. The item must be packaged in strict compliance with ASTM D3951, but all applicable DLA Master List of Technical and Quality Requirements, identified by R or I numbers, take precedence. Packaging and labeling must adhere to MIL-STD-129, and palletization must follow DLA’s RP001 packaging standards. The unit of issue is each, with zero tolerance for quantity variance. Inspection and acceptance occur at the destination. Shipping must be conducted via traceable freight methods only—parcel post is prohibited—and the shipment is designated as RDD with a TCN W55XGJ62010135. The required delivery date is July 23, 2026, and the contract is governed by Department of Defense procurement protocols under NAICS code 336310.

LAND SUPPLY CHAIN

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VALVE, SAFETY RELIEFThis contract specifies the procurement of four safety relief valves with part number 51226-1 and NSN 4820-01-642-7156 from EATON AEROSPACE LLC under solicitation SPE7M0-26-T-018R. The valves are designated as a critical application item and must comply with all technical and quality requirements listed in the DLA Master List of Technical and Quality Requirements, which supersede any other specification standards. The use of Class I ozone depleting chemicals is strictly prohibited, and any substitute chemicals require prior approval unless explicitly authorized by the specifications. Delivery is required within five days of award, with items furnished FOB origin and inspected and accepted at destination. No quantity variance is permitted. Packaging must adhere to ASTM D3951 and MIL-STD-129 labeling standards, with palletization following DLA Packaging Requirements, and unit of issue is each. Shipping must be via the fastest traceable means—parcel post is explicitly forbidden. The delivery address is the Fleet Readiness Center East in Cherry Point, North Carolina, and the required delivery date is July 6, 2026. The contract references specific DLA codes and identifiers, including the purchase request number and freight shipping details, and is subject to full compliance with DoD procurement protocols and unit of issue standards.

MARITIME SUPPLY CHAIN ESOC BUYS

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TANK, FUEL, ENGINEThe contract is an indefinite-delivery contract issued by the Department of Defense’s Strategic Acq Program Directorate under solicitation SPE7LX-26-U-9018 for the procurement of 10 units of Fuel Tank, Engine, NSN 2910-01-575-5229, with a maximum estimated contract value of $350,000. The solicitation is a total small business set-aside under NAICS code 336310, requiring offerors to self-certify as small businesses and provide valid UEI and CAGE codes. Deliveries are to be made FOB origin within 74 days of award, with no quantity variance permitted, and final acceptance occurs at the destination point after government inspection. Packaging must adhere to ASTM D3951, but all requirements from the DLA Master List of Technical and Quality Requirements take precedence, and all labeling and marking must comply with MIL-STD-129, including palletization according to RP001. Hazardous materials must be handled and labeled per OSHA’s Hazard Communication Standard, and all contractors are bound by clauses related to combating human trafficking, employment eligibility verification, sustainable products, and safeguarding covered defense information. Pricing is not fixed at the contract level; no unit price is listed, making the contract contingent upon future delivery orders with individual pricing determined at that time. Electronic submission through DIBBS is mandatory, with proposals due by August 10, 2026, and payment must be processed exclusively via WAWF. Compliance with FAR and DFARS clauses, including equal opportunity, whistleblower protections, disclosure of information, and restrictions on former DoD officials’ compensation, is required. The contract does not include detailed evaluation factors or weights, and award will be made based on what is most advantageous to the government after considering price and other factors.

STRATEGIC ACQ PROGRAM DIRECTORATE

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SELECTOR, DIRECTIONALThe contract is for a single unit of a directional selector with part number RDDA-LAN and NSN 4820-01-325-0589, procured by the Defense Logistics Agency under solicitation SPE7MC-26-T-154L. The item is classified as a TYPE I (CODE H) with a non-extendable shelf life of 12 months and must meet leakproof screw adjustment control specifications ranging from 35 to 210 bar, with a standard setting of 70 bar and a Buna N seal. Technical and quality requirements are governed by the DLA Master List of Technical and Quality Requirements, with the applicable revision determined by the solicitation or award date depending on the acquisition size. Packaging must comply with MIL-STD-2073-1E, including preservative method 31, dry storage, and marking per MIL-STD-129 with no special markings required. The item must be palletized according to DLA packaging standards and shipped FOB origin with a strict 10-day delivery window to the designated military address in Zaczernie, Poland. The quantity variance is fixed at 0 percent, with inspection and acceptance occurring at the destination. The unit of issue is each, priced at $1.00, and the original required delivery date is July 22, 2026. Transportation and shipment logistics follow DLAD procedure notes C19 and C20.

Defense Logistics Agency

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VALVE, SAFETY RELIEFThe contract is for a single safety relief valve, identified by NSN 4820-01-642-8320 and part number 27CC13M-U20/S4-230 PSI, manufactured by Curtiss-Wright Flow Control Corporation, with a required delivery of one unit within 20 days FOB destination. The item must comply with all DLA Master List of Technical and Quality Requirements, which supersede other standards including ASTM D3951, and packaging must adhere to MIL-STD-129 and RP001 for procurement, including palletization and labeling. Mercury and mercury-containing compounds are strictly prohibited from intentional addition or direct contact with the hardware except under specific exemptions for functional uses in batteries, lighting, instruments, sensors, controls, weapon systems, or chemical reagents specified by NAVSEA, with portable devices requiring shockproof construction and a secondary containment barrier per NAVSEA 5100-003D. Delivery is directed to USS Richard M McCool Jr LPD 29 at FPO AE 09591, with shipment required via traceable transportation methods and not parcel post, using the RDD 777 designation and VSM for vendor shipment. The contract references DLA Procurement Notes C19 and C20 for transportation protocols and is governed by a solicitation with a response deadline of August 6, 2026, issued under NAICS code 336310 by the Defense Logistics Agency under solicitation SPE7MC-26-T-154P.

Defense Logistics Agency

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O-RINGThe contract is for the procurement of four O-rings with NSN 5331-01-718-7596, issued under solicitation SPE7L1-26-T-878W by the Department of Defense through the Land Supply Chain. Delivery is due within 195 days from award, and the item must be packaged in a medium-duty, waterproof, greaseproof, opaque bag conforming to MIL-DTL-117, Type II, Class C, Style 1 to protect against UV degradation, applying to all delivery types including direct vendor delivery, foreign military sales, and stock shipments. The product must be free of asbestos and class I ozone-depleting chemicals, with any substitutions requiring formal approval; specifications supersede but do not waive product performance obligations. Supply chain traceability documentation must be retained by the contractor in accordance with DLA Directive Procurement Note C03 from August 2016. Technical and quality requirements referenced by R or I numbers are governed by the DLA Master List, with the applicable revision determined by the solicitation issuance or award date depending on acquisition size. Documentation requirements for source approval, removal of government identification from non-accepted supplies, and retention of traceability records are enforced, and covered defense information may apply. The point of contact is Chelsea Cunningham, and performance is to occur in Tracy, California, with a response deadline of August 6, 2026.

LAND SUPPLY CHAIN

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29--TANK,FUEL,ENGINEThe contract solicitation SPE7LX26U9018 seeks to procure 10 units of NSN 2910015755229 TANK,FUEL,ENGINE under a Total Small Business Set-Aside, with a guaranteed minimum order of one unit. The procurement is structured as a Request for Quotation with electronic submissions only, and responses must be received by August 10, 2026. The resulting contract could be an Indefinite Delivery Contract lasting one year or until the aggregate value of orders reaches $350,000, with an estimated two orders placed annually. Items will be delivered to multiple DLA Depots across CONUS and OCONUS regions, consolidated and containerized as needed. The approved source for this item is 64678 A03-37346-141, and deliveries are required within 74 days of order placement. The solicitation is issued by the DLA Land and Maritime office in Columbus, Ohio, under NAICS code 336310, and all responsible small business sources are eligible to respond. No technical specifications, plans, or drawings are available, and hard copies of the solicitation are not provided; all information must be accessed electronically through the SAM.gov link provided.

DLA Land And Maritime

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Commercial Truck Engine Supply (500+ HP, 13L+)The contract calls for the supply of new diesel engines meeting a minimum specification of 500 horsepower and 1850 lb-ft of torque, with a displacement of 13 liters, designed for integration into model year 2027 and newer commercial trucks. All engines must fully comply with the 2021 EPA emissions standards, ensuring compliance with current federal environmental regulations for heavy-duty applications. The engines are intended for use in heavy commercial vehicle platforms and must be capable of meeting the performance and durability demands of modern freight and logistics operations. This subcontract opportunity, posted on July 24, 2026, by the Mississippi Department of Finance and Administration under agency name MPTAP, sets a response deadline of August 18, 2026. The North American Industry Classification System code 336310 identifies the scope as engine manufacturing for motor vehicles, indicating a focus on original equipment supply rather than aftermarket or retrofit solutions. The place of performance and contact details are not specified, but bidders are expected to align delivery and compliance with the requirements outlined for model year 2027+ truck applications. Participation is open to qualified contractors capable of meeting technical, regulatory, and production timelines without set-aside restrictions.

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Supply of Diesel Engine Block AssembliesThe contract is for the procurement and delivery of diesel engine block assemblies bearing part number 396873300, with all packaging, labeling, and documentation required to meet established DLA and Department of Defense standards. The requirement is structured as a subcontract under a Total Small Business Set-Aside, meaning only small businesses certified by the Small Business Administration are eligible to respond, in alignment with FAR 19.5 regulations. The North American Industry Classification System code 336310 identifies the work as falling under the manufacturing of motor vehicle engine parts, specifying the technical and industrial scope of the effort. All deliverables must adhere to strict military compliance protocols to ensure interoperability, traceability, and readiness for military operations. The solicitation was posted on July 24, 2026, with responses due by July 29, 2026, indicating a compressed nine-day window for interested vendors to prepare and submit proposals. The contracting activity is managed by the Land Supply Chain organization within the Department of Defense, though specific office locations or points of contact are not provided in the data. Performance of the contract will occur under DoD oversight without a designated location specified, suggesting possible deployment to various military bases or logistics hubs. The official solicitation can be accessed via the DIBBS portal using the provided link for full technical specifications and submission guidelines.

LAND SUPPLY CHAIN

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