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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 5331-00-959-0982 P/N 6725865 · 6725865 · AS3551-112 · MS9241-112 · +2 more
  2. O-RING NSN 5331-00-955-6772 P/N PRP568-167-4024-25 · AS3578-167 · MS9021-167 · 2-167 N506-65 · +2 more
  3. O-RING NSN 5331-00-954-4896 P/N NAS1613 · NAS1611-226 · AS568-226 2AA815A13F17EA14 · E0515 2-226 · +2 more
  4. O-RING NSN 5331-00-954-1285 P/N PRP909-33 142-70 · MS29561-255 · 2-255 N4771-70 · 2-255 47-071 · +2 more
  5. O-RING NSN 5331-00-953-9162 P/N AS3582-273 · 418048-273 · MS9068-273 · 2-273S604-7 · +2 more
  6. O-RING NSN 5331-00-952-9609 P/N S8057AK223 · S8057AK223 · S8057Z223 · S8057AK223 · +2 more
  7. O-RING NSN 5331-00-948-6924 P/N 4J8996 · 4J8996 · 4J8996 · 4J8996 · +2 more
  8. O-RING NSN 5331-00-948-3224 P/N 005-17107 · 206846 · NAS1593-005 · 2-005 V747-75 · +2 more
  9. O-RING NSN 5331-00-947-6937 P/N 69494R149 · 69494R149 · 69494R149 · 69494R149 · +2 more
  10. O-RING NSN 5331-00-947-0090 P/N 69494R22 · 69494R22 · 69494R22 · 5331PL0892646 · +2 more
  11. O-RING NSN 5331-00-947-0085 P/N 69494R29 · 69494R29 · 69494R29 · 5331PL1147587 · +2 more
  12. O-RING NSN 5331-00-943-2062 P/N AS3582-339 · RS900L339 · MS9068-339 · MS9068-339ES · +2 more
  13. O-RING NSN 5331-00-942-8441 P/N 34666-16 · 903270C1 · 34666-16 · 903270C1 · +2 more
  14. O-RING NSN 5331-00-942-4440 P/N NAS1613 · NAS1611-121 · 2-121 E515-80 · 2-121 E515-80 · +2 more
  15. O-RING NSN 5331-00-941-8645 P/N AS3582-135 · MS9068-135 · 2-135 S604-70 · 2-135 S604-70 · +2 more
  16. O-RING NSN 5331-00-941-3343 P/N 99-4036 · 99-4036 · 99-4036 · 99-4036 · +2 more
  17. O-RING NSN 5331-00-939-9562 P/N MS17413-013 · MS9388-013 · 99-2973-13 · MS9388-013 · +2 more
  18. O-RING NSN 5331-00-938-2066 P/N NAS1611-274 · 2-274E515-8 · 2-274E515-8 · E0515 2-274 · +2 more
  19. O-RING NSN 5331-00-938-2022 P/N A6689.906.142 · A6686.906.142 · 9902PC21 · A6689-906-142 · +2 more
  20. O-RING NSN 5331-00-935-9112 P/N ARP568-008-11647 · HPS55-008 · ARP568-008L308-8 · HPS55-008 · +2 more
  21. O-RING NSN 5331-00-935-6126 P/N ASM3303 · AS568-015 · MILS-STD-413 · 25626083-22 · +2 more
  22. O-RING NSN 5331-00-932-1837 P/N 114-12137 · 509P84 · 509-0084 · 509-84 · +2 more
  23. O-RING NSN 5331-00-931-7234 P/N YRG0-6009 · 283550-1604 · 2-274N219-7 · 2-274-N674-70 · +2 more
  24. O-RING NSN 5331-00-931-3014 P/N AS568-223 · AMS 3304 · AMS3304-223ES · S10J139-161 · +2 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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