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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 5331-01-080-0041 P/N MIL-R-25988/2 · M25988/2-902 · MIL-DTL-25988/2 · S9412-552 · +3 more
  2. O-RING NSN 5331-01-079-7302 P/N S9412-006 · S9412-006 · M25988/2-006 · MIL-R-25988/2 · +3 more
  3. O-RING NSN 5331-01-079-7299 P/N S9412-016 · MIL-R-25988/2 · M25988/2-016 · MIL-DTL-25988/2 · +3 more
  4. O-RING NSN 5331-01-077-9758 P/N 5793294 FIND 084 · 2-025N674-70 · G140-2025A · 2-025 N674-70 · +3 more
  5. O-RING NSN 5331-01-076-5710 P/N NAS1593 · NAS1593-022 · MIL-R-83248 · AS568-022MILR83248TY1 · +3 more
  6. O-RING NSN 5331-01-076-4971 P/N 0223852 ITEM 36 · SM-C-773504-22 · 2-140E515-80 · 7-57-169 · +3 more
  7. O-RING NSN 5331-01-075-1000 P/N MS9967-113 · 5331PL0959664 · MS9967-113 · MS9967-113ES · +3 more
  8. O-RING NSN 5331-01-073-2548 P/N 0003564050 · 91618768 · P01-7335 · P01-7335 · +3 more
  9. O-RING NSN 5331-01-072-8984 P/N 3046201 · 60224769 · 02/912724 · CU3046201 · +3 more
  10. O-RING NSN 5331-01-072-6678 P/N RA10199-89 · NE-158-8273 · 9169M40P119 · 9169M40P199 · +3 more
  11. O-RING NSN 5331-01-071-8790 P/N 2118-218 · 11-218 · BACP11L218 · 2218 · +3 more
  12. O-RING NSN 5331-01-071-3410 P/N MS9967-010 · MS9967-010 · MS9967-010ES · 9638221131 · +3 more
  13. O-RING NSN 5331-01-070-8606 P/N P48026-105 · PRP568-105-4067-70 · MS28775-105 · MS28775-105 · +3 more
  14. O-RING NSN 5331-01-070-4836 P/N PRP568-013-4200-70 · AS568-013 · AMS 7270K · 5331PL1394074 · +3 more
  15. O-RING NSN 5331-01-069-9311 P/N 562809 · 3143577 · 5331PL0896292 · 352250019944 · +3 more
  16. O-RING NSN 5331-01-069-4851 P/N 220042GE24 · 220042GE24 · 1ST X 2ND STG SUC VALVE · 200136ACPC708 · +3 more
  17. O-RING NSN 5331-01-068-5530 P/N 167639-1 · 167639-1 · 167639-1 · 167639-1 · +3 more
  18. O-RING NSN 5331-01-067-3451 P/N AS568-325 · AMS3209L · MIL-G-1149 TY 2 CL 1 · AS568-325MIL-G- 1149 TY 2 CL 1 · +3 more
  19. O-RING NSN 5331-01-066-1920 P/N 0090258-100 · M25988/3-002 · MIL-DTL-25988/3 · MIL-R-25988/3 · +3 more
  20. O-RING NSN 5331-01-064-7233 P/N I23-240-2 · D904 ITEM56 · AS568-240AMS3304 · 2-240 S604-70 · +3 more
  21. O-RING NSN 5331-01-062-0999 P/N 50-68-A-017-1 · 150-068-A-017 · 150-068-A-017 · 150-068-A-017 · +3 more
  22. O-RING NSN 5331-01-061-3331 P/N 40401-09 PART 750 FIND 9 · 750 · 63842 · 5023-73 · +3 more
  23. O-RING NSN 5331-01-059-1141 P/N 3-907 · 3-907 N507-90 · 3-90N507-90 · 3-907 N507-90 · +3 more
  24. O-RING NSN 5331-01-059-0279 P/N 7866-260 · 457-60-260 · MS29513-260 · 1793-260 · +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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