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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 5331-01-005-0537 P/N AS3209-390 · MIL-R-83248/1 · M83248/1-390 · SAE-AMS7276 · +1 more
  2. O-RING NSN 5331-01-005-0536 P/N AS3209-389 · M83248/1-389 · MIL-R-83248/1 · SAE-AMS7276 · +1 more
  3. O-RING NSN 5331-01-004-7226 P/N AS568-120MILP5516-70DURM · S1E10036PC40 · AS568-120MILP5516-70DURMCP · S1E10036PC40CP · +1 more
  4. O-RING NSN 5331-01-004-7225 P/N AS568-112MILG23652TY2 · AC180-112 · AS568-112MILG23652TY2CP · AC180-112CP · +1 more
  5. O-RING NSN 5331-01-004-7223 P/N AS568-213MILG23652TY2 · AC180-213 · AS568-213MILG23652TY2CP · AC180-213CP · +1 more
  6. O-RING NSN 5331-01-004-6996 P/N 5331PL0755935 · 33A029860 · 115652001PC45 · 115652001PC45 · +1 more
  7. O-RING NSN 5331-01-004-6995 P/N 5331PL0755925 · 0-12-1-27 · O-10-1-30 · 115652001PC44 · +1 more
  8. O-RING NSN 5331-01-004-6991 P/N ASTM D2000/GR 2BG715B14E14E3 · 5331PL0755917 · 11652001PC43 · 115652001 · +1 more
  9. O-RING NSN 5331-01-004-6979 P/N 2661058R023 · MS8775-023 · 2731877PC77 · 2661058R023 · +1 more
  10. O-RING NSN 5331-01-004-6975 P/N 2661058R012 · 2661058R012 · 2661058R012 · 2731877PC27 · +1 more
  11. O-RING NSN 5331-01-004-6129 P/N R149P129J · 2-129 V747-75 · 2-129V835-75 · V0747 2-129 · +1 more
  12. O-RING NSN 5331-00-999-8364 P/N 4D6695 · 4D6695 · 4D6695 · 2-279N951-75 · +1 more
  13. O-RING NSN 5331-00-999-3756 P/N 6772373 · 6772373 · 6772373 · 5330009993756 · +1 more
  14. O-RING NSN 5331-00-997-1533 P/N S45172-245 · 2540009971533 · S45172-245 · S45172-245 · +1 more
  15. O-RING NSN 5331-00-995-8286 P/N X1514T228C · 20A11CM228 · X1514T228C · 20A11CM228 · +1 more
  16. O-RING NSN 5331-00-995-2601 P/N 2-274 · 2-274 · 2-274C147-7 · 2-274 C147-7 · +1 more
  17. O-RING NSN 5331-00-995-2596 P/N 2-348 · 2-348 · 62488-51 · 2-348C873-70 · +1 more
  18. O-RING NSN 5331-00-990-7787 P/N BACG10U8 · BACG10U8 · BACG10U8 · BACG10U8 · +1 more
  19. O-RING NSN 5331-00-990-7165 P/N MS29561-145 · MS29561-145 · 2-145 47-071 · MS29561-145 · +1 more
  20. O-RING NSN 5331-00-990-5748 P/N 571014 · 571014 · 571013 · 571014 · +1 more
  21. O-RING NSN 5331-00-989-6031 P/N 1067966 · 2-236C268-3 · 1067966 · 5800334-6000-569 · +1 more
  22. O-RING NSN 5331-00-985-3139 P/N X1514T216C · X1514T216C · X1514T216C · X1514T216C · +1 more
  23. O-RING NSN 5331-00-985-3132 P/N X1514T008C · X1514T008C · X1514T008C · X1514T008C · +1 more
  24. O-RING NSN 5331-00-984-4607 P/N 4564019 · ARP 019 · 5331PL0691028 · 00001900ML · +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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