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 5331-01-027-8985 P/N 0J/C.290.001.42 · 2-142N552-90 · 2-142-N507-90 · N0552 2-142 · +3 more
  2. O-RING NSN 5331-01-026-2913 P/N N-576REVA PIECE 18 · 6227-33 · 2-330 · 2-330-N034-75 · +3 more
  3. O-RING NSN 5331-01-026-2211 P/N 993-3344 · 18TN283 · 10524188 · 18TN283 · +3 more
  4. O-RING NSN 5331-01-026-2207 P/N 9933336 · 993-3336 · 18TN458 · 18N458 · +3 more
  5. O-RING NSN 5331-01-025-7792 P/N AS568B · 3-6C147-7 · 3-906C147-7 · 3-6C147-70 · +3 more
  6. O-RING NSN 5331-01-025-7788 P/N 7866-041 · 457-60-041 · AS29513-041 · 1793-041 · +3 more
  7. O-RING NSN 5331-01-025-5806 P/N AS568-122AMS3209 · 2-122C147-7 · 2-122C873-70 · 2-122C147-70 · +3 more
  8. O-RING NSN 5331-01-025-4200 P/N S8057AK204 · S8057Z204 · S8057AK204 · S8057AK204 · +3 more
  9. O-RING NSN 5331-01-024-8135 P/N AS568-283 · AS568-283 MIL-P-25732 · MIL-P-25732 · 5331PL1291515 · +3 more
  10. O-RING NSN 5331-01-023-5407 P/N BACP11AB212 · 073862-212 · BACP11AB212 · BACP11AB212 · +3 more
  11. O-RING NSN 5331-01-022-9019 P/N AS3581-156 · AMS7259 · MIL-R-83248/2 · M83248/2-156 · +3 more
  12. O-RING NSN 5331-01-020-9693 P/N 123-166-5 · K123-166-2 · AS3582-166 · MS9068-166 · +3 more
  13. O-RING NSN 5331-01-020-5272 P/N S8990-249 · S8990-249 · S8990-249 · S8990-249 · +3 more
  14. O-RING NSN 5331-01-020-5268 P/N 568383 · AS568-383 · 253392 · 253392 · +3 more
  15. O-RING NSN 5331-01-017-5614 P/N S9413-543 · S9413-543 · S9413-543 · S9413-543 · +3 more
  16. O-RING NSN 5331-01-015-9698 P/N EE44774 · EE44774 · AS3582-353 · MS9068-353 · +3 more
  17. O-RING NSN 5331-01-014-8321 P/N AS3582-140 · MS9068-140 · 79975F01 · 79975F01 · +3 more
  18. O-RING NSN 5331-01-014-7615 P/N ASTM D2000 · AS568-262 · 5331PL0900506 · AN6230-40 · +3 more
  19. O-RING NSN 5331-01-014-7494 P/N AS568B-234 · 10683-114 · GRC513-234-1183 · AN12NT · +3 more
  20. O-RING NSN 5331-01-014-2605 P/N NAS1613 · NAS1611-014 · 2-014E515-8 · NAS1611-0141 · +3 more
  21. O-RING NSN 5331-01-014-2604 P/N NAS1613 · NAS1611-118 · NAS1611 · AN6227B/118 · +3 more
  22. O-RING NSN 5331-01-013-3726 P/N 18255PC38 · 4334-53 · ARP568-334C557- 7 · 4334-73 · +3 more
  23. O-RING NSN 5331-01-013-3725 P/N 364-48756-000 ITEM 94 · 028-11189-000 · 4236-53 · 18255PC3 · +3 more
  24. O-RING NSN 5331-01-008-6817 P/N PWA51984-24 · PRP568-346-4024-65 · AS3578-346 · MS9021-346 · +3 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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