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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 5331-01-324-5266 P/N PL2850-0030 FIND 49 · M83248/1-037 · MIL-R-83248/1-037 · M83248/1-037CP · +3 more
  2. O-RING NSN 5331-01-322-8058 P/N M83485/1-236 · MIL-R-83485/1-236 · 5331PL2028425 · M83485/1-236 · +3 more
  3. O-RING NSN 5331-01-321-7188 P/N SV799335 FIND 9 · STSV047AN021 · STSV047AN021 · STSV047AN021 · +3 more
  4. O-RING NSN 5331-01-320-0477 P/N 1337051 · 179442 P/N 1337051 · AS568A-250 · AS568A-250 · +3 more
  5. O-RING NSN 5331-01-319-2997 P/N STSV047AN038CP · SV792306 FIND 9 · STSV047AN038 · STSV047AN038CP · +3 more
  6. O-RING NSN 5331-01-317-9968 P/N M83485/1-037 · AMS-R-83485/1 · M83485/1-037 · MIL-R-83485/1 · +3 more
  7. O-RING NSN 5331-01-317-8092 P/N M83461/1-221 · AMS-P-83461/1 · MIL-P-83461/1 · M83461/1-221 · +3 more
  8. O-RING NSN 5331-01-317-6349 P/N MS9967-133 · 5331PL2094897 · 5331PL0673206 · MS9967-133 · +3 more
  9. O-RING NSN 5331-01-317-3870 P/N AS3578-278 · AMS7271 · 938A813-140 · MS9021-278 · +3 more
  10. O-RING NSN 5331-01-312-8899 P/N 301991 · 226-4087-90 · 50770 · AS226G42-70 · +3 more
  11. O-RING NSN 5331-01-311-7145 P/N 10156-1 · LL-HQ6-4243 · 10156-1 · 11352PC18 · +3 more
  12. O-RING NSN 5331-01-311-1607 P/N 838821-7 · 838821 · 838821 · 838821-7 · +3 more
  13. O-RING NSN 5331-01-311-1475 P/N 25124-040 · 25126-040 · 25126-040 · 25124-040 · +3 more
  14. O-RING NSN 5331-01-311-1474 P/N 25126-017 · 25126-017 · 25124-014 · 25126-014 · +3 more
  15. O-RING NSN 5331-01-304-3453 P/N Z053095777 · 95777 · Z053095777 · 2EK561 · +3 more
  16. O-RING NSN 5331-01-301-5006 P/N 453 8742-672 · 0059979148 · 453 8742-672 · 0169971448 · +3 more
  17. O-RING NSN 5331-01-301-4993 P/N 0059978548 · 0059978548 · 4538742-714 · 94309-991 · +3 more
  18. O-RING NSN 5331-01-300-6306 P/N 608537.003 SEQ 275 · 001337.650.000 · 608537.003 SEQ 272 · 001312.650.000 · +3 more
  19. O-RING NSN 5331-01-299-5133 P/N 14762 · 14762 · 14762/57783 · 710018-121 · +3 more
  20. O-RING NSN 5331-01-298-8125 P/N 20A11CM219 · 9250B · 2-219-1000-70 · N0674-70 2-219 · +3 more
  21. O-RING NSN 5331-01-295-3717 P/N 016-002450-171 · MIL-R-25988/3 · M25988/3-171 · MIL-DTL-25988/3 · +3 more
  22. O-RING NSN 5331-01-295-1074 P/N 9680596 · EVB-CGB1-7 · 9689596 · M4060019 · +3 more
  23. O-RING NSN 5331-01-291-7885 P/N 0150113 · 997160014 · 36-09X3-53HN18834B · 997160014 · +3 more
  24. O-RING NSN 5331-01-290-0071 P/N NAS1611-113CP · NAS1611-113 · NAS1601-113 · 63750-2 ITEM 21 · +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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