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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 5331-00-786-2329 P/N GS13AF12 · 5-151-10011-10 · 5-151-1011-10 · 5-151 · +2 more
  2. O-RING NSN 5331-00-783-4515 P/N PRP568-038-376-40 · AS568-038 · AMS-R-6855 · AMS-R-6855 · +2 more
  3. O-RING NSN 5331-00-781-7638 P/N 012-11648 · 182559 · 2-012L308-8 · L0308 2-012 · +2 more
  4. O-RING NSN 5331-00-776-2830 P/N AS3551-912 · AS3551-12 · MS9355-12 · MS9355-12 · +2 more
  5. O-RING NSN 5331-00-769-5959 P/N AS3551-904 · AS3551-04 · AS3551-904 · MS9355-04 · +2 more
  6. O-RING NSN 5331-00-769-5950 P/N AS3551-903 · AS3551-03 · MS9355-03 · MS9355-03 · +2 more
  7. O-RING NSN 5331-00-768-7750 P/N 016-9257 · AMS 3238C-016 · AS568-016AMS3238 · 300509-01 · +2 more
  8. O-RING NSN 5331-00-768-1999 P/N 19480P11 · 120R0V24CLASS1 · 60453-24 · 120R0V24CLASS1 · +2 more
  9. O-RING NSN 5331-00-767-8769 P/N 050227-0000 · 050227 · V2C · KC8V2C · +2 more
  10. O-RING NSN 5331-00-767-0493 P/N PRP568-429-4024-65 · AS3578-429 · MS9021-429 · 2-429 N506-65 · +2 more
  11. O-RING NSN 5331-00-764-2861 P/N AS3582-267 · MS9068-267 · 2-267-S604-70 · AS1367-267 · +2 more
  12. O-RING NSN 5331-00-763-9004 P/N MS9386-259 · MS9386-259 · S8990-259 · S8990-259P · +2 more
  13. O-RING NSN 5331-00-763-2394 P/N AS3582-277 · MS9068-277 · 10163328 · 2-277-S604-70 · +2 more
  14. O-RING NSN 5331-00-763-0244 P/N J17223 · AS568-916 · AMS7276 · ARP568-916MILG23652TY1 · +2 more
  15. O-RING NSN 5331-01-721-7009 P/N N0507 A5510-118 · 8635043-2 · 8635043 · 8635043-2 · +2 more
  16. O-RING NSN 5331-01-721-6991 P/N N0507 A5510-496 · 8635043-1 · 8635043 · 8635043-1 · +2 more
  17. O-RING NSN 5331-01-721-5563 P/N 8635042 · 8635042-12 · 8635042-12 · NM756 A83461-136 · +2 more
  18. O-RING NSN 5331-01-721-5554 P/N 8635042 · 8635042-20 · 8635042-20 · 8635042-20 · +2 more
  19. O-RING NSN 5331-01-721-5527 P/N 8635042-22 · 8635042 · 8635042-22 · N0756 A83461-016 · +2 more
  20. O-RING NSN 5331-01-721-5213 P/N 8635042 · 8635042-4 · 8635042-4 · NM756 A83461-020 · +2 more
  21. O-RING NSN 5331-01-721-3707 P/N 8600430 · 8600430 ITEM 114 · AS3581-111 · 8600430 ITEM 114D7 · +2 more
  22. O-RING NSN 5331-01-719-0258 P/N 2502774-65 · 2502774 · 2502774-65 · 2502774-65 · +2 more
  23. O-RING NSN 5331-01-719-0242 P/N 2502774 · 2502774-52 · 2502774-52 · 2502774-52 · +2 more
  24. O-RING NSN 5331-01-719-0240 P/N 8635040-11 · 8635040 · 8635040-11 · VM330 A7276-020 · +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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