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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 5331-00-565-4291 P/N 909-13 · AN6230-13 · AN6230-13 · 5330PL0898331 · +3 more
  2. O-RING NSN 5331-00-558-1325 P/N A-A-59588 · B86002-905S · 07A568-905S · AS568-905 · +3 more
  3. O-RING NSN 5331-00-543-6478 P/N 6015199 · 6015199 · MS90064-6 · MS900LUPL · +3 more
  4. O-RING NSN 5331-00-542-1854 P/N AS28775-229 · AN6230-7 · 5331PL0894377 · 9864-252X2PC12 · +3 more
  5. O-RING NSN 5331-00-542-1851 P/N 100A10-28 · 779REVAPC25 · 598-516-1894231REVAPCITEM7 · 598-700-1893078REVBPC8 · +3 more
  6. O-RING NSN 5331-00-542-0930 P/N NHPB11199REVIPC17 · 5M5 · CD210REVALINE18SH2 · 5904-3136437REVIPC17 · +3 more
  7. O-RING NSN 5331-00-534-5566 P/N 10B10363 · 129796 · 17VPS10 · 154016 · +3 more
  8. O-RING NSN 5331-00-531-7451 P/N ARP568-168MILP25732 · 2-168N304-75 · 2-168N304-7 · 68-743 · +3 more
  9. O-RING NSN 5331-00-531-4795 P/N S8171K109 · 58171K109 · 58171K109 · S8171K109 · +3 more
  10. O-RING NSN 5331-00-527-8165 P/N S4-32 · AS3569-219 · AN123979 · AN123979 · +3 more
  11. O-RING NSN 5331-00-527-7939 P/N PRP568-225-4024-65 · AS3578-225 · 5331PL0840215 · MS9021-225 · +3 more
  12. O-RING NSN 5331-00-527-7891 P/N 6512311 · 6512311 · 6512311 · 6512311 · +3 more
  13. O-RING NSN 5331-00-516-6268 P/N 6722553 · 6722553 · 6722553 · AS3551-044 · +3 more
  14. O-RING NSN 5331-00-505-3924 P/N 72-2000-040PC13 · 5331PL1377475 · 10399382 · AS906MIL-R-8348 5TX1 · +3 more
  15. O-RING NSN 5331-00-500-1783 P/N 52840PC8 · A52865 · 52865 · 52865 · +3 more
  16. O-RING NSN 5331-00-498-5755 P/N M259881-1-123 · 16606A54-111 · MIL-DTL-25988/1 · MIL-R-25988/1 · +3 more
  17. O-RING NSN 5331-00-498-5739 P/N MIL-DTL-25988/1 · M25988/1-120 · MILR25988 · 3285239+120 · +3 more
  18. O-RING NSN 5331-00-491-7664 P/N ARP568-232E540-8 · 803-4384536-85A 30 · 803-4384536-8XX -30E540-8 · E0540 2-232 · +3 more
  19. O-RING NSN 5331-00-491-5491 P/N W2987280PC123 · X2987364PC72 · W02307 · W2987280PC123 · +3 more
  20. O-RING NSN 5331-00-486-7041 P/N 102A10006-02 · 100111AM112 · MIL-DTL-25988/1 · MILR25988 · +3 more
  21. O-RING NSN 5331-00-482-1594 P/N AS568B-237 · D2000-M2BA807B13F19 · 2-237E540-8 · 707524-237 · +3 more
  22. O-RING NSN 5331-00-480-3305 P/N 2-006-N163-70 · AS568-006 · ASTM 2000 · 2-006 N163-70 · +3 more
  23. O-RING NSN 5331-00-472-2636 P/N 820-2179130PC84 · 2-258N674-70 · AN6230-36 · 5331PL0898303 · +3 more
  24. O-RING NSN 5331-00-470-9712 P/N 82005510-005 · 82005510-005 · 82005510-005 · 82005510-005 · +3 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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