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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 5331-01-324-5262 P/N AS29513-250 · MS29513-250 · MS29513-250CP · MS29513-250CP · +1 more
  2. O-RING NSN 5331-01-324-2529 P/N 70934784 · 70934784 · 2-017-V75 · 70934784 · +1 more
  3. O-RING NSN 5331-01-323-9941 P/N 803-6397247-5XX1-29(OLD) · 803-6397247-5XXX-29 · M83461/1-217 · M83461/1-217 · +1 more
  4. O-RING NSN 5331-01-323-7968 P/N 45229-62 · MS28775-16 · MS28775-16 · SAE-AS28775 · +1 more
  5. O-RING NSN 5331-01-323-3798 P/N NAS1601-436 · NAS1613 · NAS1611-436A · 2-436E515-80 · +1 more
  6. O-RING NSN 5331-01-323-1080 P/N DR172/46 ITEM-2 · 10099 · R3037 · DR172/46 ITEM-2 · +1 more
  7. O-RING NSN 5331-01-322-8059 P/N M83485/1-258 · MIL-R-83485/1-258 · M83485/1-259 · SAE-AS83485 · +1 more
  8. O-RING NSN 5331-01-321-7717 P/N STSV465A029 · SV799335 FIND 84 · STSV465A029 · STSV465A029CP · +1 more
  9. O-RING NSN 5331-01-321-7199 P/N SV799335 FIND 82 · STSV047AL042 · STSV047AL042 · STSV047AL042CP · +1 more
  10. O-RING NSN 5331-01-321-7198 P/N STSV047AL031 · SV799335 FIND 80 · STSV047AL031 · STSV047AL031CP · +1 more
  11. O-RING NSN 5331-01-321-7196 P/N SV799335 FIND 62 · STSV047AN029 · STSV047AN029 · SV799335 FIND 62CP · +1 more
  12. O-RING NSN 5331-01-321-7193 P/N SV799335 FIND 78 · STSV047AL013 · STSV047AL013 · STSV047AL013CP · +1 more
  13. O-RING NSN 5331-01-321-7190 P/N STSV047AN035 · SV799335 FIND 27 · STSV047AN035 · STSV047AN035CP · +1 more
  14. O-RING NSN 5331-01-321-7187 P/N STSV047AN030 · SV799335 FIND 8 · STSV047AN030 · SV799335 FIND 8CP · +1 more
  15. O-RING NSN 5331-01-321-7185 P/N STSV047AN016 · SV799335 FIND 41 · STSV047AN016 · SV799335 FIND 41CP · +1 more
  16. O-RING NSN 5331-01-321-5967 P/N DR159/69 ITEM 7 · 10267 · RN1245-30 · 10267 · +1 more
  17. O-RING NSN 5331-01-321-2926 P/N SV799336 FIND 16 · STSV047AL025 · STSV047AL025 · STSV047AL025CP · +1 more
  18. O-RING NSN 5331-01-321-2048 P/N B06425 · B06421 · B06421Q · B06421 · +1 more
  19. O-RING NSN 5331-01-320-9566 P/N 14301-43840 · 14301-43840 · 14301-4384-0 · 14301-4384-0 · +1 more
  20. O-RING NSN 5331-01-320-9557 P/N 322038 · 04811-50300 · CV114156 · 04811-50300 · +1 more
  21. O-RING NSN 5331-01-320-9294 P/N S9412-539 · S9412-539 · S9412-539 · S9412-539 · +1 more
  22. O-RING NSN 5331-01-320-8115 P/N 1298023-27 · 1298023-27 · 1298023-27 · 2-217E515-80 · +1 more
  23. O-RING NSN 5331-01-320-7187 P/N 5366006-1 · RA12774-01 · 5366006-1 · A215SR-8011-50 · +1 more
  24. O-RING NSN 5331-01-320-3546 P/N 22340420 · 223404-20 · 22340420 · 223404 20 · +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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