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 5331-01-579-5204 P/N E0962-90 2-022 · 2-022 E0962 · E0962 2-022 · E0962-90-022 · +1 more
  2. O-RING NSN 5331-01-579-5181 P/N E0962 2-007 · E0962-90-007 · E0962-90 2-007 · 2-007 E0962 · +1 more
  3. O-RING NSN 5331-01-579-5161 P/N E0962-90-010 · E0962 2-010 · 2-010 E0962-90 · 2-010 E0962 · +1 more
  4. O-RING NSN 5331-01-577-8982 P/N 119773-42570 · 1HARR/YN119773-42570 · 10097262 · 1HARR/YN119773-42570 · +1 more
  5. O-RING NSN 5331-01-576-3020 P/N A900505-00616 · 4074T58P76 · 4074T58P76 · 4074T58 · +1 more
  6. O-RING NSN 5331-01-576-2737 P/N M83461/1-372 · AMS-P-83461 · SAE-AS83461/1 · M83461/1-372 · +1 more
  7. O-RING SET NSN 5331-01-574-5450 P/N BL1031 · D50-0024 NOTE 6 P/N BL1031 · D50-0024 NOTE 6 P/N BL1031 · BL1031 · +1 more
  8. O-RING NSN 5331-01-573-7699 P/N 70R5056 · RD-5-4017-011 · TV040131-001 · TV040131-001 · +1 more
  9. O-RING NSN 5331-01-572-0251 P/N 4G10301 ITEM 077 · PL4G10301 ITEM 077 · PRP568-379-4900-70 · 2-379 N674-70 · +1 more
  10. O-RING NSN 5331-01-571-9592 P/N B8505 ITEM 2 OXYGEN CLEAN · 123-115-5 OXYGEN CLEAN · XM123-115-5 · B8505 ITEM 2 OXYGEN CLEAN CP · +1 more
  11. O-RING NSN 5331-01-571-8508 P/N 071C · F45460 PC 76 · F45460 PC 76 · F45460 PC 76 · +1 more
  12. O-RING NSN 5331-01-571-8504 P/N F45460 PC 74 · 069C · F45460 PC 74 · 069C · +1 more
  13. O-RING NSN 5331-01-571-1678 P/N 26KP684 · 26KP684 · 25KP684 · 8024N912 · +1 more
  14. O-RING NSN 5331-01-569-6596 P/N 437-3474 · 436 · 39M-433 · 39M-436 · +1 more
  15. O-RING NSN 5331-01-569-2607 P/N 12508570-003 · 12580570-003 · 22KP507 · 22KP507 · +1 more
  16. O-RING NSN 5331-01-568-6894 P/N 12601858 · 3558035 · 3558035 · 2-210 KA158-70 · +1 more
  17. O-RING NSN 5331-01-567-5696 P/N 14KP995 · 0202-916 · 14KP995 · AS568A-916 · +1 more
  18. O-RING NSN 5331-01-567-3082 P/N 52822 · 5331PL2340380 · SMU-00000071 · 52822 · +1 more
  19. O-RING NSN 5331-01-566-9714 P/N 500001034E · 23KP546 · 23KP546 · 7421688243 · +1 more
  20. O-RING NSN 5331-01-565-5386 P/N 2000346 · 22KP589 · 5331PL2128896 · 0744622 · +1 more
  21. O-RING NSN 5331-01-565-2970 P/N 1761482 06 · 1766965 84 POS 26 · 1761482 06 · 1761482 06 · +1 more
  22. O-RING NSN 5331-01-564-9571 P/N 23KP471 · 23KP471 · 50028855 · 136-7226 · +1 more
  23. O-RING NSN 5331-01-564-6479 P/N M83485/1-126 · M83485/1-126 · M83485/1-126 · SAE-AS83485 · +1 more
  24. O-RING NSN 5331-01-564-4273 P/N 2415A070 · 4606817 · 4602899 · QACXX100891 · +1 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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