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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 5331-01-221-0555 P/N 12293888-2 · 12293888-2 · 12293888-2 · 2-008-S469-40 · +1 more
  2. O-RING NSN 5331-01-220-6526 P/N 080-04273-391 · 080-04273-391 · 080-04273-391 · 080-04273-391 · +1 more
  3. O-RING NSN 5331-01-220-3376 P/N 5331PL0658500 · 2666850-10 · 2666850-1U · SOCN2666850-10 · +1 more
  4. O-RING NSN 5331-01-220-3367 P/N 5331PL1884618 · 5331PL0848118 · 2666850-136 · SOCN2666850-136 · +1 more
  5. O-RING NSN 5331-01-220-2476 P/N MIL-R-25988/1 · MIL-DTL-25988/1 · M25988/1-164 · 5331PL2131647 · +1 more
  6. O-RING NSN 5331-01-220-1921 P/N 702383-908CP · 702383-908CP · 702383-908 · 702383-908 · +1 more
  7. O-RING NSN 5331-01-089-2573 P/N 5331PL0796383 · 892-7760 · 892-07760-000 · 451-7531-4 · +1 more
  8. O-RING NSN 5331-01-088-8963 P/N MIL-R-83248/2 · M83248/2-909 · 5331PL1259351 · SAE-AS3581 · +1 more
  9. O-RING NSN 5331-01-088-7967 P/N M25988/4-908 · MIL-DTL-25988/4 · MIL-R-25988/4 · 3-908 L806-80 · +1 more
  10. O-RING NSN 5331-01-087-9756 P/N M25988/3-137 · MIL-DTL-25988/3 · MIL-R-25988/3 · 538395-137 · +1 more
  11. O-RING NSN 5331-01-087-9553 P/N AS3582-330 · MS9068-330 · 40050-009 · SAE-AS3582 · +1 more
  12. O-RING NSN 5331-01-086-8588 P/N 581R130H21 · RA12872-21 · RA12907-01 · 1JA3368J33 · +1 more
  13. O-RING NSN 5331-01-086-4931 P/N AS568-233AMS3303 · AS568-233 · 8220B · AS568-233AMS330 3 · +1 more
  14. O-RING NSN 5331-01-086-2380 P/N AS568-246AMS3303 · 2265677-510 · AS568-246AMS330 3 · 8219B · +1 more
  15. O-RING NSN 5331-01-084-4753 P/N AS568-239MIL-G-1149TY1CL5 · 5331PL1258773 · AS568-239MILG11 49TY1CL5 · 2-239N299-50 · +1 more
  16. O-RING NSN 5331-01-084-1199 P/N 5-057B612-70 · 932124-882 · 1JA3368J56 · B0612 5-057 · +1 more
  17. O-RING NSN 5331-01-083-2339 P/N M25988/1-251 · MIL-R-25988/1 · MIL-DTL-25988/1 · 5331PL0658330 · +1 more
  18. O-RING NSN 5331-01-083-2213 P/N 322598 · 322598 · 322598 · 322598 · +1 more
  19. O-RING NSN 5331-01-083-1618 P/N AS3581-204 · M83248/2-204 · MIL-R-83248/2 · AS3581-204 · +1 more
  20. O-RING NSN 5331-01-082-5742 P/N 3FC116 · 00439310 · 00358520 ITEM 5 · 95830133-0 · +1 more
  21. O-RING NSN 5331-01-081-9502 P/N S8057AP-17 · MIL-DTL-25988/2 · M25988/2-212 · S9412-212 · +1 more
  22. O-RING NSN 5331-01-081-8954 P/N 605463 INDEX 9 NITRILE · 2-156N552-90 · 2-156N552-90 · N92156 · +1 more
  23. O-RING NSN 5331-01-081-4496 P/N Z05373377 · 73377 · 73377 · 50AX167 · +1 more
  24. O-RING NSN 5331-01-080-8118 P/N STSV047M013 · NAS1613 · NAS1611-013 · 10117154 · +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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