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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 5331-01-031-1346 P/N 2507294-9 · AS-568-016-B46A -70 · 2507294-9 · 2-016 N674-7 · +4 more
  2. O-RING NSN 5331-01-031-1345 P/N 2507294-11 · 2507294-11 · 2-018 N674-70 · 2-018 N674-70 · +4 more
  3. O-RING NSN 5331-01-031-1342 P/N 2507294-26 · 01-006869-087 · 2507294-26 · 2507294-26 · +4 more
  4. O-RING NSN 5331-01-031-1332 P/N 2507294-35 · 2507294-35 · N141027410 · 2507294-35 · +4 more
  5. O-RING NSN 5331-00-759-7069 P/N J228P013 · 5331PL0166743 · J228P013 · J228P013 · +4 more
  6. O-RING NSN 5331-00-752-8806 P/N 574063 · AA2871-015PCALL · AB2871-32PC1PCLIST5 · 2-015E688-70 · +4 more
  7. O-RING NSN 5331-00-752-7866 P/N 1023-202 PC 12 · 33152 · 33139PC26 · 2620-241REVCPC301 · +4 more
  8. O-RING NSN 5331-00-737-6732 P/N 7376732 · 2250530 · KC8916 · 2250530 · +4 more
  9. O-RING NSN 5331-00-731-6141 P/N 0XN94-84908 · MS28778-08 · 5331PL0982378 · 0XN94-84908CP · +4 more
  10. O-RING NSN 5331-00-730-6637 P/N 7710908 · 1497 · HX 1692 · 4456-70 · +4 more
  11. O-RING NSN 5331-00-720-2948 P/N PRP568-032-4024-65 · AS3578-032 · MS9021-032 · 2-032 N506-65 · +4 more
  12. O-RING NSN 5331-00-720-2535 P/N 25141-231-4058-90 · A25124-9 · 5331PL1704484 · 5331PL0642544 · +4 more
  13. O-RING NSN 5331-00-702-4713 P/N MS29561-115 · MS29561-115 · 299C410P115 · MS29561-115 · +4 more
  14. O-RING NSN 5331-00-690-9742 P/N PRP568-255-4024-65 · AS3578-255 · MS9021-255 · 2-255 N506-65 · +4 more
  15. O-RING NSN 5331-00-684-7735 P/N PRP568-434-4067-70 · AS28775 · MS28775-434 · MS28775-434 · +4 more
  16. O-RING NSN 5331-00-682-7193 P/N 5182977 · DDE 05182977 · 5182977 · 5182977 · +4 more
  17. O-RING NSN 5331-00-677-1237 P/N AS3551-033 · MS9241-033 · 7224840-6 · MS9241-033 · +4 more
  18. O-RING NSN 5331-00-641-8286 P/N P-192543A · P-192543 · 11588 · 509 · +4 more
  19. O-RING NSN 5331-00-641-3806 P/N 66G341-7 · 100T061 · 100T061 · 66G341-7 · +4 more
  20. O-RING NSN 5331-00-623-1119 P/N AS568B-221 · ASTM D2000-04 · AS568C-221 · 2-221P648-9 · +4 more
  21. O-RING NSN 5331-00-618-9854 P/N PRP568-03-4024-65 · AS3578-903 · MS9020-03 · 7,65X1,63-20B7 · +4 more
  22. O-RING NSN 5331-00-618-5904 P/N PRP568-136-4024-65 · AS3578-136 · MS9021-136 · 5330006185904 · +4 more
  23. O-RING NSN 5331-00-618-2513 P/N MS29561-216 · 5331PL0144070 · MS29561-216 · MS29561-216 · +4 more
  24. O-RING NSN 5331-00-618-1954 P/N S8171-112 · S8171-112 · S8171-112 · S8171-112 · +4 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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