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 5331-00-067-9994 P/N MS29561-146 · MS29561-146 · 10117040 · MS29561-146 · +4 more
  2. O-RING NSN 5331-00-067-6408 P/N AS3582-035 · AS3582-035 · MS9068-035 · 10163858 · +4 more
  3. O-RING NSN 5331-00-064-4386 P/N 425005-14 · 7M80-14 · 7M80-14 · 7M80-14 · +4 more
  4. O-RING NSN 5331-00-061-5144 P/N PRP568-261-4024-65 · AS3578-261 · MS9021-261 · MS9021-261ES · +4 more
  5. O-RING NSN 5331-00-058-0054 P/N PRP568-163-4024-25 · AS3578-163 · MS9021-163 · 2-163 N506-65 · +4 more
  6. O-RING NSN 5331-00-057-8570 P/N 58-009-15 · 0X58-009-15 · N90-81604CP · 58-009-15CP · +4 more
  7. O-RING NSN 5331-00-057-2068 P/N 0XN91-81601CP · 0XN91-81601 · 5331PL1968812 · 5331PL0962581 · +4 more
  8. O-RING NSN 5331-00-057-2027 P/N 0XN94-84904 · M-13950-AA-1 ITEM 15 · A6689-904-144CP · MIL-R-83248/2-904 · +4 more
  9. O-RING NSN 5331-00-054-6993 P/N 546993 · 13-617-2 · 13-0617-00 · AS568B-269 · +4 more
  10. O-RING NSN 5331-00-054-6933 P/N 225132 · 5331PL1338630 · 6191268 · ARP568-116MILP5 516-70 · +4 more
  11. O-RING NSN 5331-00-052-2431 P/N S8990-133 · S8990-133 · S8990-133 · S8990-133 · +4 more
  12. O-RING NSN 5331-00-047-3862 P/N C10096-0060-0013 · 32-01053-45 · AMS3303 · AS568-013 · +4 more
  13. O-RING NSN 5331-00-038-8719 P/N GS570J2J38 · J120R1 CLASS 1 SIZE 038 · 120R1 CLASS 1 SIZE 038 AMS3325 · 2-0388L946-60 · +4 more
  14. O-RING NSN 5331-00-038-3361 P/N S9413-024 · S9413-024 · S9413-024 · S9413-024 · +4 more
  15. O-RING NSN 5331-00-025-6606 P/N 2496T2 · 469787 · 224066 · SK251-61 · +4 more
  16. O-RING NSN 5331-00-021-3774 P/N AS568-137/M2BE710814B14E014E034F · AS568-137 · ASTM D2000-M2BE710814B14E014E034 · 2-137C873-70 · +4 more
  17. O-RING NSN 5331-00-021-3637 P/N 161-2337 · AS568-161 · C0873 2-161 · 2-161C147-7 · +4 more
  18. O-RING NSN 5331-00-008-9090 P/N 2.072IDX0.139W · 2.055-2.0891DX.135-.143W · 2.055-2.089IDX.135-.143W · S9412-613 · +4 more
  19. O-RING NSN 5331-00-007-6116 P/N PRP568-445-4200-70 · ASTMD2000 · AS568-445 · RNG1721 · +4 more
  20. O-RING NSN 5331-00-006-2430 P/N 0200-001-125 · 114-350 · MS9388-125 · R1309P125 · +4 more
  21. O-RING NSN 5331-00-005-8166 P/N 5331PL0784464 · 671-00908 · 671-00908 · M15-16700PIECE2 · +4 more
  22. O-RING NSN 5331-00-005-0799 P/N AS3209-017 · 5331PL0140365 · AS3209-017 · 946.91.27.717 · +4 more
  23. O-RING NSN 5331-00-004-7314 P/N 589095 · 589095 · 589095 · AS568-210 · +4 more
  24. O-RING NSN 5331-00-004-2989 P/N S9412-128 · S9412-128 · S9412-128 · S9412-128 · +4 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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