PSC 5310: Nuts and Washers
5310 is the product and service code (PSC) federal agencies use for nuts and washers, in the hardware and abrasives group. Here are the contracts open under it now, the NAICS codes it pairs with, and who buys and wins this work.
- Open contracts now
- 6
- Spending, FY2026
- $87.6 million
- Share to small businesses
- 69%
Open contracts with PSC 5310, due soonest
- Source Sought Flat Washer NSN: 5310-01-612-4549
✦ The Army Contracting Command at Detroit Arsenal is asking for interested small businesses (a sources sought notice) for a flat washer, NSN 5310-01-612-4549.
Due in 5 daysOct 14, 2026
- WASHER,FLAT
✦ The Navy (NAVSUP Weapon Systems Support, Mechanicsburg) is asking for quotes to make flat washers, part number MS15795-818 (CAGE 80205).
Due in 10 daysOct 19, 2026
- NUT,SELF-LOCKING,HE
✦ The Navy (NAVSUP Weapon Systems Support, Mechanicsburg) wants to buy self-locking hexagon nuts, part number MS17829-16C, made to specification NASM25027, for use in a crucial…
Due in 17 daysOct 26, 2026
- RETAINING NUT
Due in 21 daysOct 30, 2026
- FD2020-22-00023
Due in 44 daysNov 23, 2026
- FD2020-22-00798
Due in 218 daysMay 16, 2027
Where 5310 sits in the PSC Manual
- Category: Product
- Group 53: Hardware and Abrasives
- Code 5310: Nuts and Washers
NAICS codes used with PSC 5310
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with 5310 most often:
| NAICS | Industry | Spent, last 3 years |
|---|---|---|
| 332722 | Bolt, Nut, Screw, Rivet, and Washer Manufacturing | $229.1 million |
| 336413 | Other Aircraft Parts and Auxiliary Equipment Manufacturing | $24.9 million |
| 336411 | Aircraft Manufacturing | $5.6 million |
| 332510 | Hardware Manufacturing | $5.3 million |
| 334511 | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | $3 million |
| 332912 | Fluid Power Valve and Hose Fitting Manufacturing | $2.9 million |
Who buys under PSC 5310
Agencies with the most contract dollars under 5310 over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| Defense Logistics Agency | $272.9 million |
| Department of the Navy | $16.3 million |
| U.S. Coast Guard | $3.3 million |
| Federal Acquisition Service | $1.2 million |
| Department of the Army | $609,553 |
| Department of the Air Force | $429,512 |
| United States Mint | $176,851 |
| Federal Prison Industries / Unicor | $170,837 |
Federal spending under PSC 5310 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $94.8 million |
| FY2025 | $112.9 million |
| FY2026 | $87.6 million |
| FY2027 (so far) | $0 |
Who wins PSC 5310 contracts
| Company | Obligated, last 3 years |
|---|---|
| Noble Supply & Logistics, LLC | $44.2 million |
| Adept Fasteners Inc | $10.2 million |
| Don Industrial Group LLC | $9.2 million |
| Lockheed Martin Corporation | $8.7 million |
| Defense Support Services, Inc. | $7.6 million |
| The Boeing Company | $5 million |
| ATF Aerospace LLC | $4.6 million |
| DC Precision LLC | $3.9 million |
| Aero-Glen International LLC | $3.9 million |
| ES3 Prime Logistics Group Inc | $3.9 million |
Related PSC codes
- 5305 Screws
- 5306 Bolts
- 5307 Studs
- 5315 Nails, Machine Keys, and Pins
- 5320 Rivets
- 5325 Fastening Devices
- 5330 Packing and Gasket Materials
- 5331 O – Ring
- 5335 Metal Screening
- 5340 Hardware, Commercial
Frequently asked questions
What is PSC 5310?
5310 is the product code in the federal Product and Service Code (PSC) Manual for nuts and washers, under 53 (Hardware and Abrasives). Agencies put a PSC on every contract to record what they bought.
What is the difference between a PSC and a NAICS code?
A PSC describes what the government is buying. A NAICS code describes the industry of the business doing the work, and it sets the SBA size standard for small business set-asides. Every contract notice has both.
Which NAICS code goes with PSC 5310?
Most federal contract dollars under PSC 5310 go with NAICS 332722 (Bolt, Nut, Screw, Rivet, and Washer Manufacturing), according to USAspending.gov. The contracting officer picks the NAICS code for each solicitation, so check the notice.
How do I find contracts that use PSC 5310?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 6 open notices use PSC 5310 right now. FedReady can match new ones to your business and email you, free.