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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 5331-01-008-6809 P/N RA 10032-90 · 5052-032 · J224P032 · J224P032 · +2 more
  2. O-RING NSN 5331-01-008-1156 P/N 4143-53 · P37-433-1PC13 · P38-433-3PC26 · ARP568-143C557- 7 · +2 more
  3. O-RING NSN 5331-01-007-4890 P/N AS3209-391 · MIL-R-83248/1 · M83248/1-391 · SAE-AS83248/1 · +2 more
  4. O-RING NSN 5331-01-007-1629 P/N MIL-R-25988/1 · M25988/1-229 · MIL-DTL-25988/1 · 5331PL2336111 · +2 more
  5. O-RING NSN 5331-01-007-1605 P/N M25988/1-159 · MIL-R-25988/1 · MIL-DTL-25988/1 · 5331PL0658292 · +2 more
  6. O-RING NSN 5331-01-007-1604 P/N M25988/1-158 · MIL-R-25988/1 · MIL-DTL-25988/1 · 5331PL2165326 · +2 more
  7. O-RING NSN 5331-01-006-9488 P/N 016-002450-142 · MIL-DTL-25988/3 · M25988/3-142 · MIL-R-25988/3 · +2 more
  8. O-RING NSN 5331-01-006-9048 P/N MIL-DTL-25988/1 · MIL-R-25988/1 · M25988/1-916 · 5331PL0658284 · +2 more
  9. O-RING NSN 5331-01-006-9041 P/N 5052-115 · RA 10115-90 · J224P115 · J224P115 · +2 more
  10. O-RING NSN 5331-01-006-9036 P/N AS568-441 · D2000 · N190441E000 · 2-441E540-8 · +2 more
  11. O-RING NSN 5331-01-006-5474 P/N AS568-209M1P25732 · AS568-209MILP25732 · ARP568-209MILP2 5732 · MS28775-209 · +2 more
  12. O-RING NSN 5331-01-006-3943 P/N 5052-009 · RA 10009-90 · J224P009 · J224P009 · +2 more
  13. O-RING NSN 5331-01-006-3936 P/N K70-0056 · K70-0056 · 2-1570C147-7 · 2-157C147-7 · +2 more
  14. O-RING NSN 5331-01-006-2438 P/N 114525-312-100 · S3226-023 · S3226-023 · 114525-312-100 · +2 more
  15. O-RING NSN 5331-01-006-2116 P/N AS3209-473 · MIL-R-83248/1 · MIL-R-83248C TYPE 1 CLASS 1 · M83248/1-473 · +2 more
  16. O-RING NSN 5331-01-005-4054 P/N AS3209-452 · M83248/1-452 · MIL-R-83248/1 · M83248/1-452 · +2 more
  17. O-RING NSN 5331-01-005-4048 P/N AS3209-434 · MIL-R-83248/1 · M83248/1-434 · M83248/1-434 · +2 more
  18. O-RING NSN 5331-01-005-0542 P/N AS3209-426 · MIL-R-83248/1 · M83248/1-426 · 2-426V747-75 · +2 more
  19. O-RING NSN 5331-01-005-0540 P/N AS3209-395 · MIL-R-83248/1 · M83248/1-395 · 2-395V747-75 · +2 more
  20. O-RING NSN 5331-01-005-0535 P/N AS3209-388 · MIL-R-83248/1 · M83248/1-388 · 2-388-V747-75 · +2 more
  21. O-RING NSN 5331-01-004-5038 P/N 5331PL0755487 · 0-7-1-17 · 15-3/40DX15-1/2 IDX.139 · O-7-1-17 · +2 more
  22. O-RING NSN 5331-01-004-5036 P/N 5331PL0755476 · 13-7/80DX13-5/8 IDX.139 · 0-7-1-8 · O-7-1-8 · +2 more
  23. O-RING NSN 5331-01-004-4873 P/N 115651001 PIECE 29 · 5331PL0755375 · O-8-3-4 · 115651020FN33 · +2 more
  24. O-RING NSN 5331-00-998-1759 P/N B-6227-13 · 2-115N304-7 · CUJ-1-25-8 · N0304 2-115 · +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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