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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 5331-00-292-0788 P/N 7866-460 · PX1775-460 · 10V60-141-460 · 457-60-460 · +16 more
  2. O-RING NSN 5331-00-291-7341 P/N 7866-327 · 60-P-31-327 · 28-3804P · PX1775-327 · +16 more
  3. O-RING NSN 5331-00-290-9486 P/N 108172 · 1-1345-4-6 · C119046 · 119046 · +16 more
  4. O-RING NSN 5331-00-263-5173 P/N MS29513-226 · AS29513-226 · TF3929 · 226-C-69 · +16 more
  5. O-RING NSN 5331-00-260-9339 P/N 7866-269 · 60-P-31-269 · PX1775-269 · 10V60-14-269 · +16 more
  6. O-RING NSN 5331-00-252-6057 P/N 11612018 · 7866-332 · 60-P-31-332 · 10V60-141-332 · +16 more
  7. O-RING NSN 5331-00-185-0596 P/N 7866-278 · 60-P-31-278 · 63B0267-268 · 63B0267-278 · +16 more
  8. O-RING NSN 5331-00-171-7786 P/N 376-111-0012 · 32-29911A84 · 012-11306 · PRP902-71109-60 · +16 more
  9. O-RING NSN 5331-00-167-5160 P/N 556-7015842-13 · SS637-522-21439 · 21326 FIND 41 · 21803 FIND 37 · +16 more
  10. O-RING NSN 5331-00-166-5994 P/N MS29512/004 · MS29512-04CP · MS29512-4 · MS29512-04 · +16 more
  11. O-RING NSN 5331-00-165-1975 P/N 911-19357 · PRP3-911-19357 · AS3208-11 · NAS1595-11 · +16 more
  12. O-RING NSN 5331-00-159-3213 P/N 7866-07 · 60-P-31-07 · PX-1775-07 · 10V60-141-07 · +16 more
  13. O-RING NSN 5331-00-152-9345 P/N 1385789 ITEM 24 · 803-1385789 ITEM 24 · 810-1385789-24 · AS568-912 · +16 more
  14. O-RING NSN 5331-00-111-5532 P/N S8990-25 · S8990-025 · S8990-025 · S8990-025 · +16 more
  15. O-RING NSN 5331-00-054-6937 P/N M125-20 · 4252761 · 4252761-4 · S7-18 · +16 more
  16. O-RING NSN 5331-01-211-9788 P/N 250S71 · AS568-444MILP25732 · AMS-P-83461/1 · M83461/1-444 · +15 more
  17. O-RING NSN 5331-01-203-3239 P/N 3-912N756-75 · 07A568-912N · 803-7106793-4-1-022 · 803-7106793-4-2-022 · +15 more
  18. O-RING NSN 5331-01-160-4327 P/N AMS-P-83461/1 · M83461/1-346 · M83461/1-346 · MIL-P-83461/1 · +15 more
  19. O-RING NSN 5331-01-156-0092 P/N 014-11648 · PRP014-11648 · 182561 · AS568-014 MIL-R-25988 CL 1 GR 80 · +15 more
  20. O-RING NSN 5331-01-136-7456 P/N 546900 · PRP169-7377 · 2507294-67 · 2507294-67 · +15 more
  21. O-RING NSN 5331-01-117-8833 P/N AN6230-50 · 10-7016 REV C ITEM 12 · 2011-145PC71 · MS28775-272 · +15 more
  22. O-RING NSN 5331-01-113-2294 P/N 034-8307 · 4PRP034-8307 · 0561C0031-6 · 2-510-011-860 · +15 more
  23. O-RING NSN 5331-01-112-4060 P/N 803-1385714-6-4 · AMS-P-83461/1 · M83461/1-134 · SAE AMS-P-83461 · +15 more
  24. O-RING NSN 5331-01-105-7263 P/N AS28775-208 · 208 · AS28775-208 · AS28775-208 · +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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