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NAICS Code· 315991

NAICS 315991: Hat, Cap, and Millinery Manufacturing

NAICS 315991 - Hat, Cap, and Millinery Manufacturing covers the production of headwear and related accessories. This industry encompasses the manufacturing of a variety of headgear, including structured caps, soft hats, and specialized millinery products.

3
Active Contracts
1
Median Bidders per Award
+0.0%
YoY Growth

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 315991.

AI Industry Description

NAICS 315991 - Hat, Cap, and Millinery Manufacturing covers the production of headwear and related accessories. This industry encompasses the manufacturing of a variety of headgear, including structured caps, soft hats, and specialized millinery products. In the government contracting landscape, thi...

NAICS 315991 - Hat, Cap, and Millinery Manufacturing covers the production of headwear and related accessories. This industry encompasses the manufacturing of a variety of headgear, including structured caps, soft hats, and specialized millinery products. In the government contracting landscape, this sector typically provides standardized apparel and protective headgear required for uniforms, tactical operations, and ceremonial duties across various federal and state entities.

Competition

How many companies historically bid on federal awards in NAICS 315991, from bidder counts reported on USAspending.

Usually Single-Bid

Half or more of reported awards drew exactly one bidder, usually a sign of incumbent-held work rather than an open field. · 2,081 reported awards

Median Bidders

1

Per reported award, all-time

Single-Bid Awards

55%

Share of reported awards with one bidder

10+ Bidder Awards

3%

Share of reported awards with 10+ bidders

Reported Awards

0

47% of 4,428 total awards

How this code compares up the NAICS hierarchy. Parent cohorts pool every code under their prefix, so they are the steadier baseline when a 6-digit sample is thin.

Industry FamilyCompetitionMedian BiddersSingle-BidBidder MixReported Awards
315991This Code
Hat, Cap, and Millinery Manufacturing
Usually Single-Bid155%
2,08147% of 4,428
31599NAICS Industry
Fewer Bidders243%
93,15069% of 134,501
3159Industry Group
Apparel Accessories and Other Apparel Manufacturing
Fewer Bidders243%
93,15069% of 134,501
315Subsector
Fewer Bidders245%
158,07965% of 241,732
31Sector
Manufacturing
Fewer Bidders240%
1,478,76516% of 9,263,130

Bidder counts reported on past federal awards in this NAICS (USAspending). An open opportunity has no bidders yet, so this is the historical norm for similar work, not a fact about this solicitation. Not all awards report bidder counts, and fewer bidders often means incumbent-held work rather than an easier win. Federal reporting of bidder counts fell from ~96% of awards (FY2016) to ~30% (FY2018 onward); the chart shows shares of reported awards, and washed-out stretches mark years with fewer than 30 of them.

Related NAICS Codes

Industries similar to Hat, Cap, and Millinery Manufacturing, by shared sector, subsector, and industry group.

Apparel Accessories and Other Apparel Manufacturing

This industry comprises establishments primarily engaged in manufacturing apparel and accessories (e...
315990Same Industry GroupHigh Similarity

Apparel Knitting Mills

This industry comprises establishments primarily engaged in knitting apparel or knitting fabric and ...
315120Same SubsectorMedium Similarity

Cut and Sew Apparel Contractors

This industry comprises establishments commonly referred to as contractors primarily engaged in (1) ...
315210Same SubsectorMedium Similarity

Cut and Sew Apparel Manufacturing (except Contractors)

This industry comprises establishments primarily engaged in manufacturing cut and sew apparel from p...
315250Same SubsectorMedium Similarity

Dog and Cat Food Manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing dog and cat food from...
311111Same SectorMedium Similarity

Other Animal Food Manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing animal food (except d...
311119Same SectorMedium Similarity

Flour Milling

This U.S. industry comprises establishments primarily engaged in (1) milling flour or meal from grai...
311211Same SectorMedium Similarity

Rice Milling

This U.S. industry comprises establishments primarily engaged in one of the following: (1) milling r...
311212Same SectorMedium Similarity

Explore contracts across multiple NAICS codes Browse all NAICS Codes

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NAICS 315991 FAQ

Frequently Asked Questions

NAICS code 315991 stands for Hat, Cap, and Millinery Manufacturing. It is a North American Industry Classification System code used by the federal government to classify business activity for procurement and contracting purposes.

Recently Posted in Hat, Cap, and Millinery Manufacturing

NAICS: 315991
New
DIBBS
Supply of Hexagon Head Cap ScrewsThis subcontract through the ASC Commodities Division of the Department of Defense involves the supply of 19 Hexagon Head Cap Screws meeting NSN 5305014790791. The contractor is responsible for sourcing or manufacturing the fasteners and ensuring all items are packaged according to RP001 and marked for shipment in accordance with MIL-STD-129. The final products must be delivered to the New Cumberland facility. Compliance with the DFARS Buy American Act and the DLA Master List of Technical and Quality Requirements is mandatory for this engagement.
ASC COMMODITIES DIVISION

POSTED

about 13 hours ago

DEADLINE

in 7 days
View Details
NAICS: 315991
New
DIBBS
Supply of Socket Head Cap Screws (NSN 5305-01-460-0695)This subcontract involves the supply of 23,608 socket head cap screws meeting NSN 5305-01-460-0695 specifications for prime contractors supporting DLA supply contracts. The manufacturer must ensure all items are packaged according to RP001 DLA Packaging Requirements and maintain full compliance with the DLA Master List of Technical and Quality Requirements known as RA001. The contract is issued by the Department of Defense under the ASC Commodities Division with a NAICS code of 315991. All units are to be delivered to DLA Distribution Red River located in Texarkana, Texas. The solicitation was posted on September 16, 2026, with a response deadline of September 24, 2026.
ASC COMMODITIES DIVISION

POSTED

7 days ago

DEADLINE

in 1 day
View Details
NAICS: 315991
New
DIBBS
Supplier of Socket Head Cap Screws (NSN 5305016248751)This subcontract with the Department of Defense ASC Commodities Division involves the procurement or manufacture of 10 socket head cap screws matching NSN 5305016248751. The supplier must ensure all items are marked according to MIL-STD-129 and strictly adhere to prohibitions regarding additive manufacturing. The project is categorized under NAICS code 315991 and will be performed in New Cumberland, Pennsylvania. The solicitation was posted on September 16, 2026, with a response deadline of September 24, 2026.
ASC COMMODITIES DIVISION

POSTED

7 days ago

DEADLINE

in 1 day
View Details
NAICS: 315991
Closed
DIBBS
Supply of Hexagon Head Cap Screws (NSN 5305-01-503-3161)This subcontract involves the supply of 654 hexagon head cap screws meeting NSN 5305-01-503-3161 specifications for prime contractors under Department of Defense supply contracts. The contractor is responsible for sourcing the fasteners and ensuring all items are packaged according to ASTM D3951 and RP001 standards, with marking performed in accordance with MIL-STD-129. All deliverables must adhere to the DLA Master List of Technical and Quality Requirements. The final products are to be delivered to DLA Distribution Red River in Texarkana, Texas. This procurement is managed by the Land Supplier Opns Engines agency under NAICS code 315991, with a response deadline set for September 21, 2026.
LAND SUPPLIER OPNS ENGINES

POSTED

13 days ago

CLOSED

1 day ago
View Details
NAICS: 315991
Closed
DIBBS
Supply of Socket Head Cap Screws (Critical Application)This subcontract involves the supply of 198 socket head cap screws, identified as part number 62832 (NSN 5305010988346) from Moog Inc, for prime contractors under DLA Aviation supply contracts. Because these components are designated as critical application items, the supplier must strictly adhere to MIL-STD-1916, ASQ H1331, and MIL-STD-105/ASQ Z1.4 inspection standards, as well as RP001 packaging requirements. The contract is managed by the Department of Defense through the ASC Supplier Oper OEM Division under NAICS code 315991. All 198 units are to be delivered to the DLA Distribution DDSP New Cumberland Facility located in New Cumberland, Pennsylvania.
ASC SUPPLIER OPER OEM DIVISION

POSTED

13 days ago

CLOSED

5 days ago
View Details
NAICS: 315991
Closed
DIBBS
Supply of Hexagon Head Cap Screws (NSN 5305015780362)This subcontract, issued by the Department of Defense under the LSO Combat Vehicles and Armament agency, requires the supply of 177 hexagon head cap screws meeting NSN 5305015780362 specifications for prime contractors supporting DLA Land and Maritime. The contract is designated as a Total Small Business Set-Aside under NAICS code 315991. The provider is responsible for manufacturing or sourcing the hardware and ensuring strict adherence to quality requirements RA001, RP001, RQ011, and RQ017. All items must be packaged according to ASTM D3951, marked and labeled per MIL-STD-129, and palletized in accordance with RP001.
LSO COMBAT VEHICLES AND ARMAMENT

POSTED

14 days ago

CLOSED

12 days ago
View Details
NAICS: 315991
Closed
DIBBS
Supply of Hexagon Head Cap Screws (NSN 5305-01-109-4534)
ASC COMMODITIES DIVISION

POSTED

21 days ago

CLOSED

13 days ago
View Details
NAICS: 315991
Closed
DIBBS
Supply of Hexagon Head Cap Screws (NSN 5305-01-406-5526)This subcontract involves the manufacture or sourcing of 122 hexagon head cap screws under NSN 5305-01-406-5526 for prime contractors supporting the Department of Defense Nuclear Reactor Program. The items must strictly adhere to MIL-DTL-1222 and MIL-DTL-1222J specifications, with material and manufacturer symbols applied according to MIL-HDBK-57. Packaging must comply with RP001 and MIL-STD-2073-IE standards. The supplier is required to provide Mill-Material Certification and a Certificate of Quality Compliance upon delivery. Additionally, the contract mandates support for source inspection of critical items. Performance for this requirement is centered in New Cumberland, Pennsylvania, under NAICS code 315991.
NUCLEAR REACTOR PROGRAM

POSTED

23 days ago

CLOSED

12 days ago
View Details
NAICS: 315991
Closed
DIBBS
Socket Head Cap Screw SupplyThis subcontract with the Department of Defense Nuclear Reactor Program involves the supply of 236 socket head cap screws for prime contractors on DLA supply contracts. The items must be manufactured or sourced according to Basic Drawing NR 10001 1446214 and Part Piece Number 418262–18, with strict adherence to TDP Rev C Gen 3 for Critical Application Items. Performance takes place at Hill AFB and requires compliance with MIL-STD-130N for identification marking, as well as MIL-STD-2073-1E and MIL-STD-129 for packaging. The opportunity was posted on August 27, 2026, with a response deadline of September 8, 2026, under NAICS code 315991.
NUCLEAR REACTOR PROGRAM

POSTED

27 days ago

CLOSED

15 days ago
View Details
NAICS: 315991
Closed
DIBBS
Nylon Outer Pouch Fabrication
MEDICAL SUPPLY CHAIIN FSH

POSTED

28 days ago

CLOSED

21 days ago
View Details
NAICS: 315991
Closed
DIBBS
Embroidered Military Insignia ManufacturingC AND T Supply Chain, acting on behalf of the Department of Defense, is seeking a subcontractor for the manufacture of 7,500 embroidered shoulder sleeve insignia for the 225th Engineer Brigade. The insignia must be produced in the OCP pattern with specific colors, feature hook fastener backing, and meet a minimum requirement of 7,353 stitches per piece. This subcontract opportunity falls under NAICS code 315991 and was posted on August 24, 2026. Interested parties must submit their responses by the deadline of August 30, 2026.
C AND T SUPPLY CHAIN

POSTED

30 days ago

CLOSED

24 days ago
View Details
NAICS: 315991
DIBBS
Military-Grade Signal Flag ManufacturingThis subcontract with the Defense Logistics Agency under the Department of Defense involves the manufacture of one military signal flag. The production must strictly adhere to MIL-DTL-226G standards, ensuring specific material specifications, colorfastness, and durability are met to maintain operational effectiveness. The contract emphasizes rigorous traceability requirements to ensure quality control and compliance with military specifications. Classified under NAICS code 315991, the project is managed by the Defense Logistics Agency to provide specialized equipment that meets precise government technical requirements.
Defense Logistics Agency

POSTED

about 1 month ago

DEADLINE

N/A
View Details

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