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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 5331-01-099-2558 P/N PL-1421 PIECE 14 · C-7020/2421 PIECE 14 · C-7022/2423 PIECE 14 · AS3581-115 · +15 more
  2. O-RING NSN 5331-01-028-9349 P/N 7866-388 · 60-P-31-388 · PX1775-388 · 10V60-141-388 · +15 more
  3. O-RING NSN 5331-01-021-1906 P/N 216533 · 345926 · 1PS49 · AS-568A-020-70BN · +15 more
  4. O-RING NSN 5331-01-014-4295 P/N 7866-277 · 60-P-31-277 · PX1775-277 · 10V60-141-277 · +15 more
  5. O-RING NSN 5331-01-006-2120 P/N PRP932-19357 · 801-6406375 FIND ACCA-A17 · NAS1595-32 · MIL-R-83248/1 · +15 more
  6. O-RING NSN 5331-01-006-2115 P/N 862628-3 · 563-7067896-69 · AS3209-472 · AMS7276 · +15 more
  7. O-RING NSN 5331-01-006-2030 P/N 2CD313 · 21682-34 · 2CD313 · 611980-4 · +15 more
  8. O-RING NSN 5331-01-006-0315 P/N 358 · 09-D ITEM 11 · AS3209-358 · MIL-R-83238/1 · +15 more
  9. O-RING NSN 5331-01-005-4058 P/N 330-19357 · N-677 PIECE 18 · AS568-330MILR83248TYPE1CLASS1 · AS3209-330 · +15 more
  10. O-RING NSN 5331-01-005-3213 P/N BACP11P327 · AS3209-327 · M83248/1-327 · MIL-R-83248/1 · +15 more
  11. O-RING NSN 5331-01-005-2309 P/N 845-7286651 ITEM 33 · 1004131 PIECE 5 · 845-4687581 ITEM 35 · AMS7276 · +15 more
  12. O-RING NSN 5331-01-005-0525 P/N NAS1593-278 · AS3209-278 · MIL-R-83248/1 · M83248/1-278 · +15 more
  13. O-RING NSN 5331-01-005-0513 P/N 01-0225-21 · M83248/1-175 · 01-0225-21 · AS3209-175 · +15 more
  14. O-RING NSN 5331-00-950-4506 P/N CM1-153-B46A · 01-495-0024 PIECE 30 · 10617878-153 · 153 · +15 more
  15. O-RING NSN 5331-00-934-0204 P/N 47866-156 · 7866-156 · 60-P-31-156 · PX-1775-156 · +15 more
  16. O-RING NSN 5331-00-928-6980 P/N 7377-456 · 201580 · P480260456 · 4067-70-456 · +15 more
  17. O-RING NSN 5331-00-881-1234 P/N 2-218S604-70 · 07A568-218S · 910658-218 · 2BA627 · +15 more
  18. O-RING NSN 5331-00-871-4348 P/N 7866-431 · 60-P-31-431 · PX1775-431 · 10V60-141-431 · +15 more
  19. O-RING NSN 5331-00-811-9139 P/N PRP433-7377 · 433-7377 · 433-846-70 · 164444-433 · +15 more
  20. O-RING NSN 5331-00-810-0669 P/N 102A10001-49 · 028-1487 · PRP028-1487 · S8057117 · +15 more
  21. O-RING NSN 5331-01-438-7519 P/N NAS1594-12 · AMS7276 · AS3209-012CP · M83248/1-012CP · +15 more
  22. O-RING NSN 5331-01-037-6127 P/N 25K-40608 · 2507294-40 · 51489 · XOR-6.234 X .139 · +15 more
  23. O-RING NSN 5331-00-689-6466 P/N NAS1611-008 · NAS1611-008A · NAS1611-008ACP · 008E515-8 · +15 more
  24. O-RING NSN 5331-00-641-0693 P/N 232K1032 · G366-4 · B651-4A · 1001-52 · +15 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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