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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 5331-00-267-0769 P/N 690393-2 REV E ITEM 24 · AS3581-134 · M83248/2-134 · 5331PL1372905 · +12 more
  2. O-RING NSN 5331-00-256-0201 P/N 1866-16-2581 · 10V70DRS8-16 · 2200-3123397PC16 · CLC1S5901H949844REVBPC70A · +12 more
  3. O-RING NSN 5331-00-252-6042 P/N 60-P-31-440 · PX1775-440 · 10V60-141-440 · PRP568-440-60 · +12 more
  4. O-RING NSN 5331-00-222-1823 P/N MS9386-115 · PRP115-11737 · 115-11757 · S8990-115 · +12 more
  5. O-RING NSN 5331-00-211-8213 P/N PRP914-19357 · 914-19357 · D1234-946 ITEM 36 · NAS1595-14 · +12 more
  6. O-RING NSN 5331-00-175-4978 P/N VS8990-604 · S8990-604 · S8990-604 · S8990-604 · +12 more
  7. O-RING NSN 5331-00-167-5150 P/N M83248/1-269 · WE-9048-36X1W1 ITEM 17 · NAS1593-269 · AS3209-269 · +12 more
  8. O-RING NSN 5331-00-166-1090 P/N MIL-R-83248/2 · MILR83248 · M83248/2-021 · 5331PL1334753 · +12 more
  9. O-RING NSN 5331-00-132-6976 P/N PRP112-11737 · 112-11737 · MS9386-112 · 69494L112 · +12 more
  10. O-RING NSN 5331-00-132-6974 P/N PRP111-11737 · 111-11737 · S8990-111 · 95075-9 · +12 more
  11. O-RING NSN 5331-00-005-3619 P/N 7866-380 · 60-P-31-380 · 63B0267-380 · PX1775-380 · +12 more
  12. O-RING NSN 5331-00-003-6690 P/N 31013-2 · 7377-137 · MS28775-137 · 4067-70-137 · +12 more
  13. O-RING NSN 5331-01-363-0744 P/N 10106-10PC11 · 30217100NO14 · 30217101 · 05555500ITEM14 · +11 more
  14. O-RING NSN 5331-01-360-1900 P/N ST1946-023 · ST1946-023 · ST1946-023 · ST1946-023 · +11 more
  15. O-RING NSN 5331-01-324-5269 P/N M83248/1-021 · PL2850-0020 FIND 56 · 803-6397408-PC204 · 803-6983468-PC145 · +11 more
  16. O-RING NSN 5331-01-211-7498 P/N ST1946-015 · ST1946-015 · ST1946-015 · ST1946-015 · +11 more
  17. O-RING NSN 5331-01-203-6828 P/N 01-425-0366-4 PIECE 31 · CM1-235-B46 · 1126570 · RE0284849 · +11 more
  18. O-RING NSN 5331-01-191-2522 P/N ST1946-024 · ST1946-024 · ST1946-024 · AV23A1116BD ITEM 12 · +11 more
  19. O-RING NSN 5331-01-189-3822 P/N 020233V0709 · 6665714 PART 3 · Z1057AN · AS3581-233 · +11 more
  20. O-RING NSN 5331-01-185-2574 P/N 845-7108571-ASSEMBLY-C ITEM 31 · PL44616-121H FIND NO 10 · 07A568-230N · AS83461/1 · +11 more
  21. O-RING NSN 5331-01-174-3283 P/N M83461/1-343 · AMS-P-83461/1 · MS28775-343 · M83461/1-343 · +11 more
  22. O-RING NSN 5331-01-173-7962 P/N M83461/1-214 · 803-6397247-4XX1-29 · M83461/1-214 · M83461/1-214 · +11 more
  23. O-RING NSN 5331-01-160-4348 P/N 408831264 · M83461/1-335 · AMS-P-83461/1 · M83461/1-335 · +11 more
  24. O-RING NSN 5331-01-129-2017 P/N PRP112-11648 · 112-11648 · MIL-DTL-25988/4 · M25988/4-112 · +11 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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