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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 5331-01-421-3117 P/N 800030309 · 923107.0412 · 800030309 · 925095-2 · +1 more
  2. O-RING NSN 5331-01-420-8783 P/N VA153 2-018 · 018-19359 · PL-M17-44640-D PIECE 105 · 018-19359 · +1 more
  3. O-RING NSN 5331-01-420-7171 P/N 1H-14007PC24 · 1H-14007PC24A · 1H-14007PC24A · 1H-14007PC24 · +1 more
  4. O-RING NSN 5331-01-420-7068 P/N K73A0012-6 · K73A0012 · 2100-C147 · C1124 0656-2100 · +1 more
  5. O-RING NSN 5331-01-420-4681 P/N 581980PC20 · 518980PC20 · 518980PC20 · 581980PC20 · +1 more
  6. O-RING NSN 5331-01-419-8408 P/N 512-6404873-27 · M83485/1-228 · M83485/1-228 · M83485/1-228 · +1 more
  7. O-RING NSN 5331-01-419-8293 P/N 7116MR-731-P4 · 7116MR-731-P4 · 1090-41565 ITEM 22 · 1090-37265-20 · +1 more
  8. O-RING NSN 5331-01-419-8292 P/N 7119FR-731-5711 · 7119FR-731-5711 · 7119FR-731-5717 · 36987-119 · +1 more
  9. O-RING NSN 5331-01-417-1569 P/N AMS-P-5315/MS29513-350 · MS29513-350 · MS29513-350 · SAE-AS29513 · +1 more
  10. O-RING NSN 5331-01-416-9425 P/N 336-190-224 · 470-0125 · 336190224 · 336-190-224 · +1 more
  11. O-RING NSN 5331-01-415-0659 P/N D50-0007 ITEM 23 · D50-0007 ITEM 23 · AS3581-222 · M83248/2-222 · +1 more
  12. O-RING NSN 5331-01-414-0810 P/N 602934 · 9M5894 · 401590ITEM64 · 401590ITEM64 · +1 more
  13. O-RING NSN 5331-01-414-0807 P/N 603287 · 401590ITEM68 · 3D8422 · 401590ITEM68 · +1 more
  14. O-RING NSN 5331-01-413-4871 P/N 19980 ITEM 8 · 17780 ITEM 8 · S07963-037 · 17780 ITEM 8 · +1 more
  15. O-RING NSN 5331-01-412-6068 P/N AMS-P-83461 · M83461/1-378 · MIL-P-83461/1 · SAE-AS83461/1 · +1 more
  16. O-RING NSN 5331-01-412-5442 P/N 7250019 ITEM 66 · 7250019-066 · 7250019-066 · 7250019 ITEM 66 · +1 more
  17. O-RING NSN 5331-01-412-5436 P/N 7250019-068 · 7250019 ITEM 68 · 7250019-068 · 7250019 ITEM 68 · +1 more
  18. O-RING NSN 5331-01-411-0124 P/N 72643 · 72643 · 72643 · 30CT93-114 REF3 PC84 · +1 more
  19. O-RING NSN 5331-01-409-1634 P/N R89944 · R89944 · R89944 · R89944 · +1 more
  20. O-RING NSN 5331-01-408-7239 P/N 00 26 68 25 · 00266825 · 00266825 · 00 26 68 25 · +1 more
  21. O-RING NSN 5331-01-408-3595 P/N 940008 · 940008 · 940008 · 940008 · +1 more
  22. O-RING NSN 5331-01-406-5506 P/N P-1114 · P-1290 ITEM 6 · P-1114 · P-1290 ITEM 6 · +1 more
  23. O-RING NSN 5331-01-397-8174 P/N ES9625-14 · ES9625-14 · 5-158L0946-60 · 5-158L1223-60 · +1 more
  24. O-RING NSN 5331-01-396-8387 P/N 57239-681-1 · I11376-8SF56F · 57239-681-1 · I11376-8SF56A · +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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