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Home/Military Standard parts/Seals & Fittings/FSC 5331
Category // FSC 5331 · 53,078 items

O-Ring

Round-section sealing rings used in grooves to seal fluid and gas connections; every item filed here is an O-ring.

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53,078 items

  1. O-RING NSN 5331-01-467-0678 P/N ST1946-169 · ST1946-169 · ST1946-169 · AMS-R-83485/1 · +9 more
  2. O-RING NSN 5331-01-415-0820 P/N ST1946-204 · ST1946-204 · ST1946-204 · ST1946-204 · +9 more
  3. O-RING NSN 5331-01-411-5876 P/N ST1946-908 · ST1946-908 · ST1946-908 · ST1946-908 · +9 more
  4. O-RING NSN 5331-01-409-0150 P/N 9220-777 · 175789 REV B ITEM 34 · 1024409 · M83485/1-220 · +9 more
  5. O-RING NSN 5331-01-407-5787 P/N 211059693 · AMS-R-83485 · AMS-R-83485/1-226 · AMC-R-83485 · +9 more
  6. O-RING NSN 5331-01-400-3656 P/N STS047AN15 · STS047AN15 · SV795792 FIND 22 · STSV047AN15CP · +9 more
  7. O-RING NSN 5331-01-388-9201 P/N ST1946-214 · ST1946-214 · ST1946-214 · ST1946-214 · +9 more
  8. O-RING NSN 5331-01-229-8081 P/N 110901PC8 · AS3581-119 · AMS7259 · MIL-R-83248/2 · +9 more
  9. O-RING NSN 5331-01-225-4199 P/N 01-435-0085-SPC95 · 01-435-0146-5PC95 · 01-435-0212-5PC95 · 593-7067139-94 · +9 more
  10. O-RING NSN 5331-01-076-5711 P/N AS568-19 · AS568-19 · MIL-R-6855 CL2 TYB GD60 · AS568-019MILR6855CL2 · +9 more
  11. O-RING NSN 5331-01-076-5705 P/N M83248/1-020 · NAS1593-020 · AS3209-020CP · M83248/1-020CP · +9 more
  12. O-RING NSN 5331-01-058-4014 P/N M25988/4-906 · 571034-06 · 182593 · M25988/4-906 · +9 more
  13. O-RING NSN 5331-01-055-2353 P/N R909152647 · 09152647 · 2HL283 · CM1-247-B46 · +9 more
  14. O-RING NSN 5331-01-053-9825 P/N 1PS91 · B1254-503 · 58-03-17 · 2-119 N674-70 · +9 more
  15. O-RING NSN 5331-01-044-2310 P/N NAS1611 · NAS1611-009 · NAS1613 · 2-009E515-8 · +9 more
  16. O-RING NSN 5331-01-043-3462 P/N ARP568-130MIL-R-83248TY1,CL1 · ARP568-130MILR25897TY1CL1 · AS568-130 · AMS3216 · +9 more
  17. O-RING NSN 5331-01-038-9588 P/N 902-7377 · 902-9-711-70 · AA436 PIECE 15 · 516-2421402REVC · +9 more
  18. O-RING NSN 5331-01-033-8618 P/N 800002-17 · PRP568-378-4067-70 · AS568-373MILP25732 · MS28775-373 · +9 more
  19. O-RING NSN 5331-00-755-4948 P/N 011-8309 · 172MKB1 · 06410P001125 · 515078 · +9 more
  20. O-RING NSN 5331-00-752-8326 P/N AN6290-10XB318-7 · 100A12-10 · 593-513-1862818CPC7 · AN6290-10XAMS7277 · +9 more
  21. O-RING NSN 5331-00-726-1236 P/N AS29561-248 · PRP248-1847 · 248-1847 · AS29561-248 · +9 more
  22. O-RING NSN 5331-00-725-9798 P/N 737-70 · N304-7 · PRP568-440-4067-70 · 7459-70 · +9 more
  23. O-RING NSN 5331-00-715-7723 P/N 5000289606 · 150181003 · 10030112 · 22546-23 · +9 more
  24. O-RING NSN 5331-00-702-4725 P/N AS3578-033 · PRP568-033-4024-65 · ARP568-033 · AS3578-033 · +9 more

Ranked by how many manufacturer cross-references are on file. Every item is quote-only — the federal record carries no price and no stock, and Atlas publishes neither. Browsing stops at page 500 of this class — past that, search by number. Send a whole list →

Questions about O-Ring

What does federal supply class 5331 cover?

Federal supply class 5331 covers O-rings, the round-section sealing rings used in grooves to seal fluid and gas connections. Every item filed here is an O-ring.

How is a part in federal supply class 5331 identified?

Because every item in the class has the same item name, the NSN is what tells one O-ring from another. Each NSN record carries the characteristics on file for that exact ring and the part numbers cross-referenced to it, so a buyer can work from an MS or AS number, a manufacturer number, or a drawing callout. Each item in the class has its own National Stock Number (NSN) record, listed above.

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