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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 5331-01-200-7819 P/N 0771C0027-5 · 1213D1414 FIND 4 · 0771C0027-5 · 1213D1414 FIND 4 · +1 more
  2. O-RING NSN 5331-01-200-1248 P/N 321163 · 321163 · 321163 · 321163 · +1 more
  3. O-RING NSN 5331-01-199-9474 P/N S8990-046 · MS9386-046 · MS9386-046 · SAE-AS9386 · +1 more
  4. O-RING NSN 5331-01-198-8437 P/N A2916CY · UA9765 · UA9765 · 200-133-11866 · +1 more
  5. O-RING NSN 5331-01-198-8253 P/N MS28775-463 · MS28775-463 · 2-463N304-75 · SAE-AS28775 · +1 more
  6. O-RING NSN 5331-01-197-2590 P/N AS28775 · MIL-P-25732C · MS28775-033 · SAE-AS28775 · +1 more
  7. O-RING NSN 5331-01-197-2283 P/N 1014120B25-9 · 1014120B25-9 · 1014120B25-9 · 1014120B25-9 · +1 more
  8. O-RING NSN 5331-01-196-6556 P/N T001223130 · T001223130 · AF934162 · T001223130 · +1 more
  9. O-RING NSN 5331-01-195-8889 P/N 12339002 · 5588676 · 5331PL0841451 · 5330011958889 · +1 more
  10. O-RING NSN 5331-01-195-8883 P/N 9443135AB-11 · 9443135AB-11 · 509E230AX PIECE 14 · 9443135ABP11 · +1 more
  11. O-RING NSN 5331-01-195-1511 P/N P46051 · P46051 · P46051 · P46051 · +1 more
  12. O-RING NSN 5331-01-195-1500 P/N 5740544 · 9002-00741-58 · 5331PL0704775 · 5330011951500 · +1 more
  13. O-RING NSN 5331-01-193-9388 P/N 813626 · 9510189 · 9210531 · 00501453 · +1 more
  14. O-RING NSN 5331-01-193-0178 P/N VE4549-1-2 · MS28775-005 · MS28775-005 · SAE-AS28775 · +1 more
  15. O-RING NSN 5331-01-192-9253 P/N 60K40508 · 205064 · 60K-40508 · 60K-40508 · +1 more
  16. O-RING NSN 5331-01-192-1879 P/N 30-781-154-50 · 30-784-154-50 · 30-784-154-50 · 30-784-154-50 · +1 more
  17. O-RING NSN 5331-01-191-4542 P/N 413112-2 ITEM 32 · 1-223129 · 6223129 · 413112-2 ITEM 32 · +1 more
  18. O-RING NSN 5331-01-191-0484 P/N PRP568-023-376-40 · AS568-023AMS3240 · 414193-119 · 2-023C356-45 · +1 more
  19. O-RING NSN 5331-01-190-9553 P/N 9338-977 · A933899-00972 · 9338-977 · 5331PL1743583 · +1 more
  20. O-RING NSN 5331-01-190-3980 P/N 57232-870-1 · 57232-870-1 · 57232-870-1 · SR124-8SL56F · +1 more
  21. O-RING NSN 5331-01-190-2748 P/N E3609 2-015 · 015-3177 · 015-3957 · 820-4551687-2 · +1 more
  22. O-RING NSN 5331-01-189-8340 P/N 36012-239 · 02-60132 ITEM 17 REV D · 36012-239 · 02-60132 ITEM 17 REV D · +1 more
  23. O-RING NSN 5331-01-189-8338 P/N 3601211201 REV E · 36012-112 · 3601211201 REV E · 02-60132 ITEM 15 REV D · +1 more
  24. O-RING NSN 5331-01-189-6521 P/N AS568B-120 · D2000-04 · 6311K12P021 · 2-120N103-70 · +1 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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