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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 5331-00-599-3267 P/N S8057B14 · S8057B14 · S8057B14 · S8057B14 · +2 more
  2. O-RING NSN 5331-00-599-3143 P/N W3740-4 · 623008B4 · W3740 · W3740-4 · +2 more
  3. O-RING NSN 5331-00-599-2763 P/N AS3569-271 · AN124031 · 2-271N179-70 · AN124031 · +2 more
  4. O-RING NSN 5331-00-599-2753 P/N 669B244PT12 · 914-12 · 024-7799 · 669B244P12 · +2 more
  5. O-RING NSN 5331-00-599-2296 P/N PB42824-1 · PB42824-1 · PB42824-1 · 1492250-1 · +2 more
  6. O-RING NSN 5331-00-599-1585 P/N AS3570-240 · AN123900 · AN123900 · 5065D43 · +2 more
  7. O-RING NSN 5331-00-599-0921 P/N PRP902-38142-70 · PRP902-38147-70 · MS29561-335 · MS29561-335 · +2 more
  8. O-RING NSN 5331-00-599-0488 P/N AS3570-259 · AN123919 · AMS7274-259ES · SAE-AS3570 · +2 more
  9. O-RING NSN 5331-00-592-3406 P/N 87Y10146 · AMS-P-5516 · MILP5516 · 87Y10146 · +2 more
  10. O-RING NSN 5331-00-589-8521 P/N 19289P11 · 10A6329 · 10A6329 · 35P219 · +2 more
  11. O-RING NSN 5331-00-589-5935 P/N S7-18 · 218K337 · 218S337 · 000-1281-4030 · +2 more
  12. O-RING NSN 5331-00-588-0892 P/N 113751A · 5262 · C4524-6723-1 · 956174 · +2 more
  13. O-RING NSN 5331-00-585-9772 P/N MS28775-001 · MS28775-001 · K123-040-1 · MS-28775-001 · +2 more
  14. O-RING NSN 5331-00-585-0852 P/N AS3569-214 · AN123974 · 1737158-72 · 2-214N179-70 · +2 more
  15. O-RING NSN 5331-00-585-0591 P/N NHPB11199-3WREVAPC47-2IN · CD190PC47 · 5M122 · 190PC47 · +2 more
  16. O-RING NSN 5331-00-585-0396 P/N 100-232 · S841 · 16702204 · 2-232-E688-70 · +2 more
  17. O-RING NSN 5331-00-585-0184 P/N AS568-211 · ARP568-211 · SP100-16 · MS28778-211 · +2 more
  18. O-RING NSN 5331-00-584-9561 P/N 58057K159 · S8057K159 · 58057K159 · S8057AY159 · +2 more
  19. O-RING NSN 5331-00-582-4840 P/N 3291701REVBPC47SH1 · 578-4501-1674728REVBPC4 · PK16P13G4057R5 · GN5212REVBPC4 · +2 more
  20. O-RING NSN 5331-00-582-2888 P/N 137752 · 137752H1 · 5X568 · 5X568 · +2 more
  21. O-RING NSN 5331-00-580-9761 P/N PRP568-235-4024-65 · AS3578-235 · 5331PL0894447 · MS9021-235 · +2 more
  22. O-RING NSN 5331-00-580-9717 P/N 955430-1-3458 · 3002-003A · 5-108E515-80 · 955430-1 · +2 more
  23. O-RING NSN 5331-00-580-8651 P/N 4008-53 · 1407-0005 · 1407-04 · 2311-0088 · +2 more
  24. O-RING NSN 5331-00-580-6585 P/N PLG32-2PC31 · 000013-2003 · 34-108 · N0674 2-003 · +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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