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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 5331-01-647-9939 P/N 3612018 · N1206 2-164 · 2-164 N1206 · 2-164 KA158-70 · +1 more
  2. O-RING NSN 5331-01-647-9812 P/N 4056488 · 4056488 OXYGEN CLEAN · 4056488 OXYGEN CLEAN · 4056488CP · +1 more
  3. O-RING NSN 5331-01-647-7244 P/N M83485/1-146 · 5331PL2089431 · M83485/1-146 · M83485/1-146 · +1 more
  4. O-RING NSN 5331-01-646-7922 P/N M83485/1-130 · 5331PL2131670 · M83485/1-130 · M83485/1-130 · +1 more
  5. O-RING NSN 5331-01-646-7921 P/N M83485/1-010 · M83485/1-010 · M83485/1-010 · SAE-AS83485 · +1 more
  6. O-RING NSN 5331-01-646-3702 P/N M83485/1-025 · AMS-R-83485/1 · SAE-AS83485 · AMS-R-83485/1 · +1 more
  7. O-RING NSN 5331-01-645-9434 P/N AS3581-010 OXYGEN CLEAN · AS3581-010 OXYGEN CLEAN CP · SAE-AS3581 · AS3581-010CP · +1 more
  8. O-RING NSN 5331-01-645-8193 P/N MARS-FW-PALL-011-002 NO 5 · 042042-000001 ITEM NO. 17 · 770102-000168 · PLFW-VS-200-001 · +1 more
  9. O-RING NSN 5331-01-645-7625 P/N 06689016269 · 13373 PG2 ITEM 11 3IN · 13373 · 06689016269 · +1 more
  10. O-RING NSN 5331-01-645-7622 P/N 06689152142 · 13373 · 13373 PG1 ITEM 16 3IN · 06689152142 · +1 more
  11. O-RING NSN 5331-01-645-4922 P/N 100-8500417 ITEM 06 · SAE-AMS3304 3/16IN 70DUR · SAE-AMS3304 3/16IN 70DURD7 · 100-8500417 ITEM 06D7 · +1 more
  12. O-RING NSN 5331-01-642-9639 P/N 10673118-117 · N3575-752-117 · ORAROO117-N7T40 · NM304-752-117 · +1 more
  13. O-RING NSN 5331-01-642-9625 P/N 10673118-158 · N3575-752-158 · ORAROO158-N7T40 · NM756 A83461-158 · +1 more
  14. O-RING NSN 5331-01-641-9245 P/N AS3581-365 · M83248/2-365 · DCL-1600-DN-CVN(SHT 2) PART8 · AS3581-365 · +1 more
  15. O-RING NSN 5331-01-632-9403 P/N BACP11K6A · BACP11K6A · BACP11K6A · BACP11K6A · +1 more
  16. O-RING NSN 5331-01-632-5613 P/N BACP11J226 · BACP11J · BACP11J226 · BACP11J226 · +1 more
  17. O-RING NSN 5331-01-632-2352 P/N M83485/1-121 · 5331PL2089423 · M83485/1-121 · M83485/1-121 · +1 more
  18. O-RING NSN 5331-01-632-2350 P/N M83485/1-043 · 5331PL2130096 · M83485/1-043 · M83485/1-043 · +1 more
  19. O-RING NSN 5331-01-632-0558 P/N XM123-904-5-90 · D3358 ITEM 7 · XM123-904-5-90CP · D3358 ITEM 7CP · +1 more
  20. O-RING NSN 5331-01-631-6059 P/N 715303250 · REF2-151 · 715303250 · N0674 2-151 · +1 more
  21. O-RING NSN 5331-01-631-6048 P/N M83485/1-125 · 5331PL2028370 · M83485/1-125 · M83485/1-125 · +1 more
  22. O-RING NSN 5331-01-631-4616 P/N M83485/1-154 · 5331PL2173855 · M83485/1-154 · SAE-AS83485 · +1 more
  23. O-RING NSN 5331-01-631-4612 P/N M83485/1-171 · 5331PL2175223 · M83485/1-171 · SAE-AS83485 · +1 more
  24. O-RING NSN 5331-01-631-4603 P/N M83485/1-278 · M83485/1-278 · M83485/1-278 · M83485/1-278 · +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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