Skip to main contentPsst! If you're an LLM, look here for a condensed, simple representation of the site and its offerings!

LiveFree Webinar — Wednesday, November 11 at 2:00 PM ET

Register Free →
CLEATUS
Get CLEATUS

This Government Contract opportunity from Department Of Defense was posted on October 5, 2017. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

61--MISCELLANEOUS ELECTRIC POWER AND DISTRIBUTION EQUIPMENT

Awarded
SPRDL117Q0480Federal

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

Active Opportunities Like This One

NAICS: 335999
New
SLED
Purchase Bus Supports
Solicitation # 153-26
Lincoln Electric System (LES) is soliciting informal bids under solicitation number 153-26 for the purchase and delivery of specific bus supports to their Operations Center in Lincoln, Nebraska. The requirement consists of 210 aluminum hook-on type bus supports with a 5-inch bolt circle and 4-inch anti-chatter springs (LES M# 9701), and 42 bus expansion supports rated for 3000 Amps (LES M# 28121), both adhering to NEMA standard centerline height. Bids must be submitted electronically via the LES Online Procurement System by November 5, 2026, at 2:00 PM CT, with a clarification deadline of November 2, 2026. The contract requires bidders to provide detailed technical specifications, a guaranteed delivery date, and a warranty period against mechanical and physical defects. Delivery time is considered an essential element of the contract, and all transportation charges must be paid by the awarded vendor. Payment will be issued by LES within thirty days following receipt and successful testing of the equipment. Award evaluation will consider technical compliance, delivery timelines, and any price escalator clauses. Successful bidders must comply with all applicable federal and Nebraska state laws, including fair employment practices and patent indemnification requirements.
Lincoln Electric System

POSTED

about 7 hours ago

DEADLINE

in 7 days
NAICS: 335999
New
DIBBS
Voltage Regulator Subassembly Supplier
DLA WEAPONS SUPPORT MARITIME SUPPLY CHAIN

POSTED

about 11 hours ago

DEADLINE

in 15 days
NAICS: 335999
New
DIBBS
Supply of Wiring Harness, BRAN (NSN 6150-01-589-8277)This subcontract involves the manufacture or sourcing of four units of the Wiring Harness, BRAN, identified by NSN 6150-01-589-8277. The contract supports prime contractors delivering for the Department of Defense under the DLA Weapons Support ASC Commodities Division. Performance of the contract will take place in Tracy, California, under NAICS code 335999. Eligible providers must maintain a valid UEI and CAGE code registration to participate. Additionally, contractors are required to provide telecommunications disclosures regarding covered defense equipment where applicable. The solicitation was posted on October 29, 2026, with a response deadline of November 6, 2026.
DLA WEAPONS SUPPORT ASC COMMODITIES DIVISION

POSTED

about 11 hours ago

DEADLINE

in 8 days
NAICS: 335999
New
DIBBS
Manufacturer of Branched Wiring Harnesses (NSN 6150-00-884-2069)This subcontract opportunity, issued by the Department of Defense DLA Weapons Support ASC Commodities Division, seeks a manufacturer to provide 240 branched wiring harnesses. The contractor is responsible for the fabrication and assembly of units according to NSN 6150-00-884-2069 specifications, ensuring all items are marked per RQ017 and packaged in accordance with MIL-STD-129 and MIL-STD-2073-1E standards. The contract is designated as a total small business set-aside under NAICS code 335999. To be eligible, providers must hold ISO 9001:2015 certification, maintain ITAR/EAR export authorization, and possess CMMC Level 2 certification verified via a C3PAO. Responses are due by November 8, 2026.
DLA WEAPONS SUPPORT ASC COMMODITIES DIVISION

POSTED

about 11 hours ago

DEADLINE

in 10 days
NAICS: 335999
New
DIBBS
Supply of Battery Power Supply (NSN 6130015667467)This subcontract involves the procurement and delivery of a specific battery power supply unit, identified as NSN 6130015667467, to support prime contractors on Department of Defense projects. The hardware is to be delivered to the Carrier Outfitting Material Support Center located in Suffolk, Virginia. The selected provider is responsible for delivering one battery power supply unit along with all necessary Safety Data Sheets and Hazardous Communication Standard labels in compliance with 29 C.F.R. 1910.1200. This requirement is managed under the DLA Weapons Support LSO Combat Vehicles and Armament agency with a response deadline of November 9, 2026.
DLA WEAPONS SUPPORT LSO COMBAT VEHICLES AND ARMAMENT

POSTED

about 11 hours ago

DEADLINE

in 11 days
NAICS: 335999
New
DIBBS
Manufacture and Supply of Special Purpose Electrical Cable AssembliesThis subcontract with the Department of Defense, specifically the DLA Weapons Support ASC Commodities Division, involves the manufacture and supply of 57 special purpose electrical cable assemblies under NSN 5995-01-674-3731. The selected provider is responsible for fabrication, performing First Article Testing, and ensuring bare item marking according to RQ017 standards. Final deliverables must include all FAT documentation and adhere to MIL-STD-2073-1E packaging requirements. To qualify, contractors must maintain ISO 9001 or SAE AS9003 quality systems and demonstrate CMMC Level 2 certification. Strict adherence to ITAR and EAR compliance is mandatory. The performance of this contract will take place in New Cumberland, Pennsylvania, with a response deadline set for November 6, 2026.
DLA WEAPONS SUPPORT ASC COMMODITIES DIVISION

POSTED

about 11 hours ago

DEADLINE

in 8 days
NAICS: 335999
New
DIBBS
Supply of Sleeve Bushings (NSN 3120-01-168-1854)This subcontract involves the manufacture or procurement of seven sleeve bushings, identified by NSN 3120-01-168-1854, to support prime contractors fulfilling DLA supply contracts. The selected provider must ensure all units meet the required technical specifications and adhere strictly to RP001 DLA Packaging Requirements for Procurement during the palletization process. The contract is issued by the Department of Defense through the DLA Weapons Support ASC Commodities Division under NAICS code 335999. Performance will take place in Tracy, California, with a response deadline set for November 6, 2026.
DLA WEAPONS SUPPORT ASC COMMODITIES DIVISION

POSTED

about 11 hours ago

DEADLINE

in 8 days
NAICS: 335999
New
DIBBS
Supply of Junction Box (NSN 5975008812732)This subcontract, issued by the Department of Defense under the DLA Weapons Support ASC Supplier Oper AE and AF Div, requires the manufacture or sourcing of six JACK BOX - J-1310/GTC-8 junction boxes. The contractor must ensure all units strictly adhere to NSN 5975008812732 technical specifications and DLA technical data, specifically complying with ECO 77C070, EO 02C0108-H, and 02C0111-H. The opportunity is designated as a Total Small Business Set-Aside under NAICS code 335999, with performance taking place in New Cumberland, Pennsylvania. Interested parties must respond by November 6, 2026, to provide these specialized components for prime contractors supporting Defense Logistics Agency supply contracts.
DLA WEAPONS SUPPORT ASC SUPPLIER OPER AE AND AF DIV

POSTED

about 11 hours ago

DEADLINE

in 8 days
NAICS: 335999
New
DIBBS
Supply of Electrical Connector Cable Clamps (NSN 5935-01-184-7189)This subcontract involves the supply of 1,134 electrical connector cable clamps for prime contractors working on Department of Defense procurement projects under the DLA Weapons Support Nuclear Reactor Program. The contractor is responsible for manufacturing or sourcing clamps that strictly adhere to NSN 5935-01-184-7189 specifications, ensuring all items are marked according to MIL-STD-129 and packaged for First Destination Transportation. Performance for this contract will take place in San Diego, California. To be eligible, the provider must possess a valid CAGE code and Unique Entity Identifier. The solicitation was posted on October 29, 2026, with a response deadline set for November 9, 2026, falling under NAICS code 335999.
DLA WEAPONS SUPPORT NUCLEAR REACTOR PROGRAM

POSTED

about 11 hours ago

DEADLINE

in 11 days
NAICS: 335999
New
DIBBS
Wiring Harness Fabrication and Assembly (NSN 5995-01-705-8842)This subcontract opportunity with the DLA Weapons Support ASC Commodities Division involves the fabrication and assembly of 50 complete wiring harnesses under NSN 5995-01-705-8842. The contractor is responsible for manufacturing assemblies according to TDP Rev B Gen 2 and Basic Drawing NR 19207 12610418 Revision B, which includes performing First Article Testing and ensuring all final products are packaged in accordance with MIL-STD-2073-1E. The project is a total small business set-aside under NAICS code 335999. To be eligible, contractors must maintain ISO 9001:2015, CMMC Level 2, and JCP certifications to handle export-controlled data. Interested parties must submit their responses by November 10, 2026.
DLA WEAPONS SUPPORT ASC COMMODITIES DIVISION

POSTED

about 11 hours ago

DEADLINE

in 12 days
NAICS: 335999
New
DIBBS
Linear Electro-Mechanical Actuator SupplierThis subcontract involves the supply of linear electro-mechanical actuators to prime contractors supporting the DLA Weapons Support Land Supply Chain within the Department of Defense. The supplier is responsible for manufacturing or sourcing units that meet NSN 3010-01-538-8023 specifications for evaluation by the Engineering Support Activity. All deliverables must strictly adhere to the DLA Master List of Technical and Quality Requirements RA001, as well as MIL-STD-129 marking and RP001 packaging standards. The contract is categorized under NAICS code 335999, with performance taking place in FPO 34087.
DLA WEAPONS SUPPORT LAND SUPPLY CHAIN

POSTED

about 11 hours ago

DEADLINE

in 11 days
NAICS: 335999
New
DIBBS
Supply of Electrical Lead Assemblies (NSN 6150-01-531-3017)This subcontract involves the manufacture or procurement of 91 electrical lead assemblies under NSN 6150-01-531-3017 for prime contractors supporting DLA supply contracts. The selected provider must ensure all units meet the required technical data package specifications, perform quality inspections at the origin, and adhere to MIL-STD-2073-1E packaging standards. The contract is managed by the Department of Defense through the DLA Weapons Support ASC Commodities Division, with performance taking place in Anniston. Delivery of the 91 completed assemblies is required on a FOB Origin basis. The solicitation was posted on October 29, 2026, with a response deadline of November 6, 2026, falling under NAICS code 335999.
DLA WEAPONS SUPPORT ASC COMMODITIES DIVISION

POSTED

about 11 hours ago

DEADLINE

in 8 days

AI Contract Overview

Show more

Solicitation SPRDL117Q0480 was issued by the Department of Defense through DLA Land Warren for the procurement of miscellaneous electric power and distribution equipment. Classified under NAICS code 335999, this request for quotation seeks supply contracts based on a firm fixed price arrangement. The procurement process requires that quotes be submitted via the FBO system, with a specific requirement for all or none submissions regarding the total quantity of items. The solicitation was posted on October 5, 2017, following an initial RFQ issuance on July 31, 2017. Key administrative details include the involvement of the DLA Land Warren office located in Warren, Michigan. Additionally, the contract includes specific provisions regarding the handling of restricted technical data packages to ensure the security and integrity of the equipment specifications.

General Info

Agency

Department Of Defense → DLA Land Warren

Contract Value

$28,772.31

NAICS

335999 - All Other Miscellaneous Electrical Equipment and Component Manufacturing

Place of Performance

MI, USA

Set-Aside

NONE

Awardee

J&K ELECTRONICS INC

Award Issued Date

Documents

1

RFQ SPRDL1-17-Q-0480

PDF, High priority: read this firstrfq
High

AI Contract Breakdown

Uniform Contract Format

Contract not broken down yet

CLEATUS splits the solicitation into Uniform Contract Format (UCF) sections: scope, pricing, deliverables, and evaluation criteria.

Timeline

PhaseAwarded
Posted

Combined Synopsis

Awarded

Contract was awarded

Submission Closed

Find active opportunities like this

Get full access to discover similar active contracts, track opportunities, and build proposals with AI assistance.

Organization & Contact Information

Show more
AgencyDepartment Of Defense → DLA Land Warren
ContactsNo contacts available
OfficeWARREN, MI, 48397, USA
Organization / AgencyDepartment Of Defense → DLA Land Warren
Office AddressWARREN, MI, 48397, USA
ContactsNo contact information available

Full Description

Show more
No Description Provided

More opportunities from Department Of Defense → DLA Land Warren

Same awarding agency

NAICS: 336320
New
Federal
Generator, Direct CU
Solicitation # SPRDL1-27-R-A041
Motor Vehicle Electrical and Electronic Equipment Manufacturing

POSTED

about 16 hours ago

DEADLINE

in about 2 months
View Details
NAICS: 335999
New
Federal
Power Supply
Solicitation # SPRDL1-27-R-A040
All Other Miscellaneous Electrical Equipment and Component Manufacturing

POSTED

about 16 hours ago

DEADLINE

in about 2 months
View Details
NAICS: 541380
New
Federal
First Article Testing and Reporting for Inertial Navigation UnitsThis subcontract involves providing specialized first article testing and reporting for Inertial Navigation Units to support prime contractors on DLA Land Warren projects. The selected provider will utilize precision navigation testing equipment within a certified laboratory to execute protocols according to Test Specification PRF 13051009 and validate hardware against Drawing Number 13023681. The project requires strict adherence to QPL specifications and FAR 52.209-3 regulations, culminating in the delivery of a First Article Test Report. This opportunity falls under NAICS code 541380 and is managed by the Department of Defense.
Testing Laboratories and Services

POSTED

1 day ago

DEADLINE

in 29 days
View Details
NAICS: 423840
New
Federal
Authorized Supplier/Distributor for Inertial Navigation UnitsThis subcontract involves the supply of Inertial Navigation Units with cases for prime contractors supporting DLA Land Warren projects. The selected provider is responsible for procuring hardware MPN HG9740AH6 from Honeywell Inc. and managing the logistics for the delivery of 36 units every 30 days. All shipments must be delivered FOB Destination and strictly adhere to MIL-STD-2073-1 and MIL-STD-129 packaging standards. To be eligible, the supplier must maintain status as an Authorized Distributor for Honeywell Inc. and demonstrate full CMMC cybersecurity compliance. The opportunity is categorized under NAICS code 423840, with a response deadline set for November 27, 2026.
Industrial Supplies Merchant Wholesalers

POSTED

1 day ago

DEADLINE

in 29 days
View Details
NAICS: 333613
New
Federal
Cylinder Assembly
Solicitation # SPRDL1-27-R-A010
This pre-solicitation notice from the DLA Land Warren office of the Department of Defense is for the procurement of Cylinder Assemblies, part number AT154865 under NSN 3040-01-476-0514. The requirement is structured as a firm fixed price contract with a base quantity of 23 units and one additional one-year option for another 23 units. This opportunity is designated as a total small business set-aside under NAICS code 333613. The contract specifies that shipping is FOB Destination, while inspection and acceptance will occur at the origin. Items must adhere to Military A packaging standards along with special packaging instructions. Interested parties should note the response deadline of November 9, 2026, and refer to the full solicitation for further details.
Mechanical Power Transmission Equipment Manufacturing

POSTED

1 day ago

DEADLINE

in 11 days
View Details
NAICS: 326211
New
Federal
Wheel Assembly, Pneumatic
Solicitation # SPRDL127RA012
This is a pre-solicitation for a five-year firm-fixed price Indefinite Delivery Indefinite Quantity contract for Pneumatic Wheel Assemblies, part number 12598968, NSN 2530-01-579-7954. The Department of Defense, via DLA Land Warren, seeks a provider capable of supplying a minimum of 108 units and a maximum of 2,813 units over the contract term. All offers must adhere to the government technical data package and specific purchased part restrictions. Delivery is set as FOB Destination with inspection and acceptance occurring at the point of origin. The solicitation is expected to be released on November 17, 2026, with a closing date around December 17, 2026. This procurement may utilize a reverse auction as a pricing technique, requiring participating contractors to be registered and trained in the reverse auction system. Interested parties can access the full solicitation and technical data via SAM.gov once released.
Tire Manufacturing (except Retreading)

POSTED

1 day ago

DEADLINE

in about 2 months
View Details
NAICS: 334511
New
Federal
Inertial Navigation with case
Solicitation # SPRDL1-27-R-A048
Solicitation SPRDL1-27-R-A048 is a request for proposal issued by DLA Land Warren for the procurement of Inertial Navigation Units with Case, identified by NSN 6605-01-578-7163 and manufacturer part number HG9740AH6. This firm fixed price, indefinite quantity contract has a guaranteed minimum quantity of 18 units and a maximum five year quantity of 438 units. Due to inadequate drawings for competitive bidding, the source is restricted to Honeywell Inc or its authorized distributors. The government will award the contract to the responsible offeror providing the lowest evaluated price or best value, with the potential use of a reverse auction as a pricing technique. Deliveries are scheduled at 36 units every thirty days, with start dates varying between 330 and 720 days after the order date depending on whether First Article Testing is required. The contract is FOB Destination, with the primary delivery point estimated as the Wolf Anniston Munitions Center. Inspection and acceptance will occur at the origin and must be coordinated through the DCMA. Offerors must submit proposals via email to the contract specialist by the specified deadline, ensuring that cost data is provided in Excel format and that all cybersecurity and CMMC requirements are met. Packaging must adhere to MIL-STD-2073-1 and MIL-STD-129 standards, and all invoicing must be processed through the Wide Area WorkFlow system.
Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing

POSTED

1 day ago

DEADLINE

in 29 days
View Details
New
Federal
Transfer Transmission
Solicitation # SPRDL127RA047
This Sources Sought Notice, issued by DLA Land Warren under solicitation number SPRDL127RA047, seeks potential sources for Transfer Transmissions used in Armored High Mobility Multi-Purpose Wheeled Vehicles (HMMWV). The required components, identified by NSN 2520-01-571-5785 and part number 12529102/19207, are designed to distribute engine torque to the front and rear driving axles. The estimated quantity ranges from a minimum of 69 units to a maximum of 1,725 units. It is important to note that this notice is not an open solicitation for bids or proposals. Because the Technical Data Package is source controlled to the contractor, interested parties must undergo qualification testing and evaluation to become an approved source. Achieving approved source status does not guarantee a contract but allows the vendor to compete on future solicitations for these parts.

POSTED

3 days ago

DEADLINE

in 19 days
View Details
NAICS: 334419
New
Federal
TEST SET, ELECTRONIC
Solicitation # SPRDL126RA024
DLA Land Warren is soliciting the procurement of electronic test sets for the Abrams end item under solicitation number SPRDL126RA024. The requirement consists of a base and option quantity award of 96 units each, identified by NSN 6625016820146 and part number 12992652. This procurement is strictly restricted to DRS with CAGE code 24290, as technical data and manufacturing knowledge are unavailable to permit other sources. The items must adhere to military level packaging and preservation level B, with manufacturing sources specified according to ASME Y14.100 standards. The solicitation is estimated to be issued on November 16, 2026, with a response deadline approximately 30 days from the issue date. The procurement falls under NAICS code 334419 and is managed by the Department of Defense. Because the item is subject to the Source Approval Program, qualification testing and evaluation are required for approved sources. The primary point of contact for this action is Muhammad Kah.
Other Electronic Component Manufacturing

POSTED

3 days ago

DEADLINE

in about 2 months
View Details
NAICS: 334220
New
Federal
Camera, Television
Solicitation # SPRDL1-27-R-A018
Solicitation SPRDL1-27-R-A018 is a request for 154 television cameras, identified by NSN 5820-01-682-0798 and OEM part number 3225863-2. This requirement is restricted exclusively to Raytheon Corporation and is issued as a subsumable contract under the DLA Aberdeen Corporate Contract SPRBL1-25-D-0006. The procurement is structured as a Firm Fixed Price agreement with a base quantity and one unexercised option for an additional 154 units, available 365 days after the contract award. Managed by DLA Land Warren, the action falls under NAICS code 334220. There is no Technical Data Package associated with this requirement. Interested parties should note the response deadline of November 11, 2026, and that all applicable clauses from the base corporate contract are incorporated by reference.
Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing

POSTED

3 days ago

DEADLINE

in 13 days
View Details
NAICS: 335931
New
Federal
Wiring Harness
Solicitation # SPRDL1-27-R-A046
The Defense Logistics Agency Weapons Support is issuing a Sources Sought notice for the procurement of a wiring harness, identified by NSN 5995016424442 and part number 13020332-1. This notice is for information and planning purposes only and does not constitute a formal request for proposal or a guarantee of a future contract. Interested parties must submit their company name, address, DUNS number, Cage Code, point of contact, business size status, and a capability statement to demonstrate their ability to provide the required item. Managed by Contract Specialist Michelle Stojkovski, the inquiry period for this requirement ends on November 11, 2026. All costs associated with responding to this notice are the responsibility of the interested party. Official solicitations, if released, will be posted on SAM.gov, and potential offerors are encouraged to monitor the site for further updates regarding this requirement.
Current-Carrying Wiring Device Manufacturing

POSTED

3 days ago

DEADLINE

in 13 days
View Details
NAICS: 423830
New
Federal
Supply of Hydraulic Motor Heads (NSN 4320-00-722-3536)This subcontract through DLA Land Warren involves the procurement and delivery of 82 genuine hydraulic motor heads under NSN 4320-00-722-3536. The contractor is required to supply authentic parts matching Manufacturer Part Numbers HD8821A or HD0021A, sourced specifically from AMBAC International Corporation to meet strict source-controlled requirements. The agreement mandates full compliance with government packaging and marking specifications and carries a DPAS Priority Rating of DO-A4. This effort supports prime contractors on DLA and Army supply contracts, ensuring the delivery of authenticated components according to the specified technical standards.
Industrial Machinery and Equipment Merchant Wholesalers

POSTED

4 days ago

DEADLINE

in 28 days
View Details

Earlier notices in this NAICS code

Posted before this notice, open and closed

NAICS: 335999
Awarded
Federal
CONTROL REMOTE, CIRCUIT CARD ASSEMBLY
Solicitation # SPRAL1-17-R-0016

POSTED

about 9 years ago

CLOSED

about 9 years ago
View Details
NAICS: 335999
Awarded
Federal
59--SOLENOID,ELECTRICAL
Solicitation # SPE7M117TE023

POSTED

about 9 years ago

CLOSED

about 9 years ago
View Details
NAICS: 335999
Awarded
Federal
59--MOUNTING BASE,ELECT
Solicitation # SPE4A617TAV86

POSTED

about 9 years ago

CLOSED

about 9 years ago
View Details
NAICS: 335999
Awarded
Federal
61--CHARGER,BATTERY
Solicitation # SPE7L717T3800

POSTED

about 9 years ago

CLOSED

about 9 years ago
View Details
NAICS: 335999
Awarded
Federal
CISCO ASA/CATALYST
Solicitation # N0025317Q0300
Naval Undersea Warfare Center

POSTED

about 9 years ago

CLOSED

about 9 years ago
View Details
NAICS: 335999
Awarded
Federal
30--CONNECTOR ASSEMBLY,
Solicitation # SPE4A518T1409

POSTED

about 9 years ago

CLOSED

about 9 years ago
View Details
NAICS: 335999
Awarded
Federal
61--CABLE ASSEMBLY,SPEC
Solicitation # SPE4A518Q0022

POSTED

about 9 years ago

CLOSED

about 9 years ago
View Details
NAICS: 335999
Awarded
Federal
61--POWER SUPPLY
Solicitation # SPE7L717T7263

POSTED

about 9 years ago

CLOSED

about 9 years ago
View Details
NAICS: 335999
Awarded
Federal
61--CABLE ASSEMBLY,SPEC
Solicitation # SPE4A518Q0020

POSTED

about 9 years ago

CLOSED

about 9 years ago
View Details
NAICS: 335999
Awarded
Federal
Battery, Charger
Solicitation # M6700417Q0021
Commander

POSTED

about 9 years ago

CLOSED

about 9 years ago
View Details
NAICS: 335999
Awarded
Federal
59--SOLENOID,ELECTRICAL
Solicitation # SPE7M117TN545

POSTED

about 9 years ago

CLOSED

about 9 years ago
View Details
NAICS: 335999
Awarded
Federal
LOCOMOTIVE SPARE PARTS INVENTORY
Solicitation # SPMYM3-17-Q-6100

POSTED

about 9 years ago

CLOSED

about 9 years ago
View Details

Find Active Opportunities Like This

Get AI-powered intelligence on the opportunities still open

Every page of the solicitation package shredded into a compliance breakdown

AI-powered matching based on your capabilities and past performance

Competitor and incumbent history on the requirement

Automated alerts on amendments, Q&A deadlines, and award

Miguel
Hillary
Keith Deutsch
Christine

Join 750+ contractors already using CLEATUS