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 5331-01-626-6210 P/N D11400-SW (70/30) ITEM 3 · D11400-SW (70/30) ITEM 3 · MIL-R-83248/2 · M83248/2-128 · +2 more
  2. O-RING NSN 5331-01-625-0699 P/N J515CH300X0374H · J515CH300X0374HBH · J515CH300X0374HBH · SAE-J515 · +2 more
  3. O-RING NSN 5331-01-623-1342 P/N 364-48946-000 ITEM 38 · 028-12513-000 · 376-92526-000 P/N 028-12513 · 028-12513 · +2 more
  4. O-RING NSN 5331-01-622-9886 P/N 2502774-39 · 3-912 E540-80 1W2B · 2502774-39 · 3-912 · +2 more
  5. O-RING NSN 5331-01-619-7175 P/N 50126 · 22322907 · 50126 · 7422322907 · +2 more
  6. O-RING NSN 5331-01-611-7085 P/N M83461/1-908 · 230354R · 610908 · 230354R ITEM 24 · +2 more
  7. O-RING NSN 5331-01-609-0754 P/N A040G553 · SAE J515 CH 29X0386H · SAEJ515CH290X0386H · SAE-J515 · +2 more
  8. O-RING NSN 5331-01-608-3448 P/N D50-0072 ITEM 2 · D50-0072 ITEM 2 · AS3581-216 · M83248/2-216 · +2 more
  9. O-RING NSN 5331-01-606-3902 P/N B8743 REV I ITEM 2 · XM123-217-5 · B8743 · MX123-217-5 · +2 more
  10. O-RING NSN 5331-01-606-3028 P/N XM123-012-5CP · XM123-012-5 · A9551 REV D ITEM 1 · B8744 REV G ITEM 1 · +2 more
  11. O-RING NSN 5331-01-603-5455 P/N D50-0006 ITEM 14 · D50-0006 ITEM 14 · AS3581-042 · M83248/2-042 · +2 more
  12. O-RING NSN 5331-01-595-6536 P/N 30-718 · 17601ITEM52 · AS3581-221 · M83248/2-221 · +2 more
  13. O-RING NSN 5331-01-593-9342 P/N XM123-017-5 OXYGEN CLEAN · XM123-017-5 · B10851 ITEM 1 · B10851 ITEM 1CP · +2 more
  14. O-RING NSN 5331-01-593-6800 P/N R1131-212 · BACP11J212 · A330-212 · S7E183-212 · +2 more
  15. O-RING NSN 5331-01-593-5783 P/N M83248/2-920 · 5200-029209CP · MB-74 FIND NO. 182CP · M83248/2-920CP · +2 more
  16. O-RING NSN 5331-01-591-8659 P/N B9800 REV C ITEM 3 · XM123-906-5 · B8868 REV H ITEM 3 · B10851 REV D ITEM 4 · +2 more
  17. O-RING NSN 5331-01-586-7512 P/N AS3581-475 · M83248/2-475 · SAE-AS3581 · AS3581-475 · +2 more
  18. O-RING NSN 5331-01-586-4226 P/N XM123-904-5 OXYGEN CLEAN · C3282 REV C · B10851 ITEM 3 · XM123-904-5 OXYGEN CLEAN CP · +2 more
  19. O-RING NSN 5331-01-584-2436 P/N B9810 REVB IT 1 · XM123-011-5 · B9810 REV D ITEM 1 · XM123-011-5 OXYGEN CLEAN CP · +2 more
  20. O-RING NSN 5331-01-583-1002 P/N SAE AS83461/1-387 · M83461/1-387 · M83461/1-387 · SAE-AS83461/1 · +2 more
  21. O-RING NSN 5331-01-582-8307 P/N 0742946 · 70-05-622 · 70-05-622 · 4895710 · +2 more
  22. O-RING NSN 5331-01-581-9446 P/N 21-19878 FIND NO 159 · 21-19878 · 2-013E515-80 · 2-013E515-80 · +2 more
  23. O-RING NSN 5331-01-580-5563 P/N 124747 · 92278440 · 1229530 · 17/929902 · +2 more
  24. O-RING NSN 5331-01-579-3997 P/N 10011119 · 23KP241 · 23KP241 · 50051226 · +2 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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