PSC codes › 5310
PSC 5310 — Nuts and Washers: federal contracts
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- RETAINING NUT
- NUT,PLAIN,HEXAGON
- NUT,PLAIN,ROUND
- NUT, HEX, HEAVY
- NSN: 5310-01-093-2480 P/N 70361-05010-103, Washer Recessed, 135,073 units
- NUT,PLAIN,HEXAGON
- FD2020-22-00023
- WASHER,FLAT
- FD2020-22-00798
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What PSC 5310 covers
Description: Nuts and Washers
Includes: Locknuts; Eye Nuts; Plain Nuts; Castellated Nuts; Wing Nuts; Plate Nuts; Push on Nuts; Concave and Convex Washers; Flat Washers; Keyed Washers; Lock Washers; Shouldered Washers; Split Washers.
Excludes: Bearing Thrust Washers (FSC 3120); Shims (FSC 5365); Ring Spacers (FSC 5365); Plate Spacers (FSC 5365); Lock Rings (FSC 5365).
Notes: Nuts and washers, including specially designed, are to be classified in this FSC. a. Nuts are a small metal block made in a variety of shapes such as square and hexagonal which is drilled and internally threaded. b. Washers are a perforated piece of metal, leather, or other materials of various shapes or forms. They are used primarily as a seat for a bolt, nut, screw, rivet or nail to distribute pressure and prevent endwise motion over an area and/or to prevent movement between two parts by means of restraining features created by the shape of its edges.
Official definition: GSA PSC Manual (PSC April 2025.xlsx), acquisition.gov/psc-manual. Category: Industrial Products & Services › Hardware & Tools.
Who is winning new PSC 5310 work
Contractors ranked by obligations on awards that started FY2024–FY2027 to date.
| Contractor | Obligations | Awards |
|---|---|---|
| NOBLE SUPPLY & LOGISTICS, LLC | $40.1M | 28,289 |
| ADEPT FASTENERS INC | $9.8M | 394 |
| DON INDUSTRIAL GROUP LLC | $9.3M | 341 |
| DEFENSE SUPPORT SERVICES, INC. | $7.3M | 325 |
| LOCKHEED MARTIN CORPORATION | $7.0M | 843 |
| THE BOEING COMPANY | $4.7M | 245 |
| ATF AEROSPACE LLC | $3.8M | 228 |
| AERO-GLEN INTERNATIONAL LLC | $3.7M | 253 |
| DC PRECISION LLC | $3.7M | 289 |
| ES3 PRIME LOGISTICS GROUP INC | $3.6M | 1,003 |
How competitive is PSC 5310?
- 77.6% of obligations on these awards were competed.
- 36.4% of competed awards that report offers drew a single offer (n=28,392).
- 69.5% went to small businesses.
- The five largest contractors hold 26.5% across 1,497 contractors.
NAICS codes used on PSC 5310 awards
| NAICS | Industry | Share |
|---|---|---|
| 332722 | Bolt, Nut, Screw, Rivet, and Washer Manufacturing | 77.6% |
| 336413 | Other Aircraft Parts and Auxiliary Equipment Manufacturing | 8.6% |
| 336411 | Aircraft Manufacturing | 1.8% |
| 332510 | Hardware Manufacturing | 1.7% |
| 332912 | Fluid Power Valve and Hose Fitting Manufacturing | 1.0% |
| 334511 | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | 1.0% |
| 314999 | All Other Miscellaneous Textile Product Mills | 0.8% |
| 332721 | Precision Turned Product Manufacturing | 0.8% |
Related PSC codes
5305 Screws · 5306 Bolts · 5340 Hardware · 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · 5365 Bushings, Rings, Shims and Spacers · 5315 Nails, Machine Keys, and Pins · 3120 Bearings, Plain, Unmounted · 5325 Fastening Devices
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