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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 5331-00-559-2636 P/N ASTM D 2000 · 018-8297 · 157515 · V157515 · +8 more
  2. O-RING NSN 5331-00-558-2330 P/N 182498 · PRP568-022-4024-65 · AS3578-022 · 5331PL1279450 · +8 more
  3. O-RING NSN 5331-00-556-7513 P/N D1000-SW-90-10 ITEM 3 · NAS1594-024 · AMS7259 · AS3581-024 · +8 more
  4. O-RING NSN 5331-00-555-3810 P/N IPD1H8128 · 1H8128 · 8H7521 · 8H7521 · +8 more
  5. O-RING NSN 5331-00-551-9573 P/N PRP568-017-4024-65 · AS7271 · AS3578-017 · MS9021-017 · +8 more
  6. O-RING NSN 5331-00-551-8252 P/N PRP568-030-4024-65 · AS3578-030 · 28101290-001 · MS9021-030 · +8 more
  7. O-RING NSN 5331-00-551-8250 P/N AS3578-020 · PRP568-020-4024-65 · AS3578-020 · MS9021-020 · +8 more
  8. O-RING NSN 5331-00-545-5332 P/N NAS1594-011 · ARP568-011MILR25897CL2 · 280974-0001PC62 · 4400591-0110 · +8 more
  9. O-RING NSN 5331-00-542-1719 P/N ARP912PC10V70-234 · 484 708 · 779B13ITEM20 · 100A12-6 · +8 more
  10. O-RING NSN 5331-00-531-3718 P/N 317S24 · 69890-24 · PRP568-219-4024-65 · 62G190-24 · +8 more
  11. O-RING NSN 5331-00-527-5997 P/N 8533734 · 69890-105 · PRP568-05-4024-65 · AS3578-905 · +8 more
  12. O-RING NSN 5331-00-526-2486 P/N 287-6008P031 · OR-161 · OR-161 · M25988/1-031 · +8 more
  13. O-RING NSN 5331-00-505-2530 P/N 232-1321 · AS568-036AMS3304 · 11-036-8447-70 · AS3582-036 · +8 more
  14. O-RING NSN 5331-00-483-1672 P/N 2-119N219-70 · 7Q072119 · 820-4446675PC3 · 820-4446652-21 · +8 more
  15. O-RING NSN 5331-00-470-9711 P/N 82005506-005 · 82005506-005 · 82005506-005 · 82005506-005 · +8 more
  16. O-RING NSN 5331-00-455-6407 P/N 2574737-7 · 2574737-7 · 2574737-7 · N141015510 · +8 more
  17. O-RING NSN 5331-00-418-2151 P/N 257437-5 · 257437-5 · 257437-5 · N219-1-239-070-70DUR · +8 more
  18. O-RING NSN 5331-00-407-5609 P/N 2MP2990 · 4X15940 MK 2 · 4X15706 ITEM 8 · 2MP2990 · +8 more
  19. O-RING NSN 5331-00-400-0010 P/N 8900630P054 · 2-024-L737-65 · 2-024 L1223-60 · L1223 2-024 · +8 more
  20. O-RING NSN 5331-00-298-5862 P/N 571-4501-1486572REVALINE5 · 575-4501-1487302REVAPC5 · 575-4501-1487301REVAPC5 · N5067REVALINE5 · +8 more
  21. O-RING NSN 5331-00-298-0254 P/N SAE-AS29513-458 · 340-127 · AS29513-458 · 52561A458 · +8 more
  22. O-RING NSN 5331-00-297-6023 P/N 809283-00 · 67G190-6 · 317S6 · 523436 · +8 more
  23. O-RING NSN 5331-00-291-3858 P/N 16655P11 · 0R3-18 · 5X573 · 4500301-9 · +8 more
  24. O-RING NSN 5331-00-291-3289 P/N 0RI-195 · AS3570-228 · AN123888 · 910153780 · +8 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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