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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 5331-01-602-0679 P/N 10202631 · FFP10202631 · 102 026 31 · FFP102 026 31 · +1 more
  2. O-RING NSN 5331-01-599-7723 P/N P26117 · B-20-2671 · 4D0083-20 · KMS1406-20 · +1 more
  3. O-RING NSN 5331-01-598-4464 P/N 90025K447 · 6436128-01M1 · 6436128 · 6436128-01M1 · +1 more
  4. O-RING NSN 5331-01-597-8830 P/N 3KK243 · 3KK243 · DP9637 · Y00023235 · +1 more
  5. O-RING NSN 5331-01-596-3592 P/N 30-0388 · 30-0388 · 17001PC10 · 30-0388 · +1 more
  6. O-RING NSN 5331-01-596-2475 P/N NAS1611-118A · NAS1611-118A · NAS1611 · NAS1611-118A · +1 more
  7. O-RING NSN 5331-01-593-9120 P/N 223-8357228-111 · AS3578-205 · H626-2201-111 · SAE-AS3578 · +1 more
  8. O-RING NSN 5331-01-592-6109 P/N 676573 · 12601049 · 3850133 · CAU24105 · +1 more
  9. O-RING NSN 5331-01-592-1480 P/N AS3290-139 · M83248/1-139 · MIL-R-83248/1 · SAE-AS83248/1 · +1 more
  10. O-RING NSN 5331-01-590-6572 P/N 23KP961 · 23KP961 · 50046656 · 50046656 · +1 more
  11. O-RING NSN 5331-01-590-2931 P/N 190-7634 · 190-7634 · 190-7634 · 190-7634 · +1 more
  12. O-RING NSN 5331-01-588-4528 P/N AS9967-127 · MS9967-127 · SAE-AS9967 · MS9967-127 · +1 more
  13. O-RING NSN 5331-01-588-4522 P/N AS9967-123 · MS9967-123 · AS9967-123 · MS9967-123 · +1 more
  14. O-RING NSN 5331-01-587-4616 P/N 3114648C1 · 50122 · 7422322919 · 22322919 · +1 more
  15. O-RING NSN 5331-01-586-8331 P/N D084-1000 ITEM NO. 29 · D084-1029CP · D084-1000 ITEM NO. 29 · D084-1029CP · +1 more
  16. O-RING NSN 5331-01-585-8875 P/N 23KP501 · 23KP501 · 6V-5266 · CV182532 · +1 more
  17. O-RING NSN 5331-01-585-6279 P/N 7250121-038 47WD8 · 7250121 REV B ITEM NO 38 · 7250121-038 · 7250121 · +1 more
  18. O-RING NSN 5331-01-584-2406 P/N B8743 ITEM 5 · 123-916-5 OXYGEN CLEAN · M83248/1-916CP · B8743 ITEM 5 CP · +1 more
  19. O-RING NSN 5331-01-583-1517 P/N AMS-R-83485/1 · M83485/1-030 · MIL-R-83485/1 · M83485/1-030 · +1 more
  20. O-RING NSN 5331-01-581-5034 P/N 60118116 · 21191301 · 21191303 · 14KP828 · +1 more
  21. O-RING NSN 5331-01-580-2428 P/N AS3581-273 · M83248/2-273 · EBV-F2-60-0340-12 · AS3581-273 · +1 more
  22. O-RING NSN 5331-01-580-2364 P/N 28-90994 · 28-90994 FIND NO 4CP · 2-124E515-80CP · 2-124E515-80CP · +1 more
  23. O-RING NSN 5331-01-580-2164 P/N 22-38867 FIND NO 9 · 22-38867 · 2-015E515-80 · 22-38867 FIND NO 9CP · +1 more
  24. O-RING NSN 5331-01-579-5222 P/N 2-021 E0962 · E0962-90-021 · 2-021 E0962-90 · E0962-90 2-021 · +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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