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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 5331-01-005-0528 P/N AS3209-381 · M83248/1-381 · MIL-R-83248/1 · 2-381V747-75 · +5 more
  2. O-RING NSN 5331-01-005-0526 P/N AS3209-379 · M83248/1-379 · MIL-R-83248/1 · 2-379V1226-75 · +5 more
  3. O-RING NSN 5331-01-004-9553 P/N N129337-37 · N129337-37 · AS568-024 · AMS3303 · +5 more
  4. O-RING NSN 5331-01-004-7232 P/N AS568-123MILP5516-70DURM · V3D10076 ITEM 13 · AC180-011CP · V3D10076PC16 · +5 more
  5. O-RING NSN 5331-01-004-6990 P/N AS568-012-A-A-59588-2A70 · AS568-012 · AS568-012ZZ-R-765CL2AGR70 · PL38E45-9ASH3PC3 · +5 more
  6. O-RING NSN 5331-00-995-2738 P/N PRP568-147-4024-25 · AS3578-147 · MS9021-147 · 2-147 N506-65 · +5 more
  7. O-RING NSN 5331-00-989-6002 P/N AS3582-255 · 9543B · 9543B · MS9068-255 · +5 more
  8. O-RING NSN 5331-00-988-7907 P/N AS568-110 · 200114LPC469 · 27-409981 · 2-110 S613-60 · +5 more
  9. O-RING NSN 5331-00-988-2555 P/N L25C85 · 11-022 · 11-022-8441-60 · 71158-18 · +5 more
  10. O-RING NSN 5331-00-985-3130 P/N X1514T114C · 95018073 · 20A11CM114 · 20A11CM114 · +5 more
  11. O-RING NSN 5331-00-984-4624 P/N 30-003C-A IT 34 · 10-383 · 30-018 IT 1 · 30-044 IT 1 · +5 more
  12. O-RING NSN 5331-00-984-3772 P/N C004-12 · 2314-9127 · MS28775-912 · 3-912-N219-7 · +5 more
  13. O-RING NSN 5331-00-973-4292 P/N 113-8307 · R67500-7 · 5331PL0787527 · R-67500-7 · +5 more
  14. O-RING NSN 5331-00-972-4693 P/N AM-11449-4 · AS568-131 · 2-131N219-7 · 505-0008-2131 · +5 more
  15. O-RING NSN 5331-00-959-7270 P/N PRP568-047-4024-65 · AS3578-047 · AMS7271 · MS9021-047 · +5 more
  16. O-RING NSN 5331-00-958-8897 P/N 25626083-19 · 2-014S613-60 · 25626083-19 · 2-014S613-6 · +5 more
  17. O-RING NSN 5331-00-954-7085 P/N NAS1593-245 · MIL-G-23652 TY2-245 · 2-245-77-545 · 2-245 V747-75 · +5 more
  18. O-RING NSN 5331-00-954-2739 P/N 12131-23 · 12131-23 · 5331PL2130100 · MS29561-245 · +5 more
  19. O-RING NSN 5331-00-954-1286 P/N AS29561-274 · MS29561-274 · ABS-R-7362 · MS29561-274 · +5 more
  20. O-RING NSN 5331-00-940-8423 P/N 0RJ2-127 · MA122-1D127 · 2-127 C557-7 · C0557 2-127 · +5 more
  21. O-RING NSN 5331-00-936-0430 P/N LL1120 5-223 · 5-223L516-8 · 663216-5 · 3609119-8 · +5 more
  22. O-RING NSN 5331-00-935-9278 P/N 050-11737 · PRP050-11737 · MS9386-050 · A-050TH1167 · +5 more
  23. O-RING NSN 5331-00-935-6069 P/N S823286-006 · 513CG116 · 87024A1680 · 2-116E515-8 · +5 more
  24. O-RING NSN 5331-00-934-0171 P/N 4564011 · 4564011 · ARP 011 · ARP568-011 · +5 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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