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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.

Filter

53,078 items

  1. O-RING NSN 5331-01-031-1344 P/N 57327000 · E3650 3/4IN PC 30 · 2507294-14 · 2507294-14 · +18 more
  2. O-RING NSN 5331-00-727-1286 P/N 10003922 · S000145 · 0018945500 · 18945500 · +18 more
  3. O-RING NSN 5331-00-684-5098 P/N AA55549-13 · A-A-55549 · AA55549-13 · AA55549-13 · +18 more
  4. O-RING NSN 5331-00-618-2516 P/N 2-218612-45 · 20218 · MS29561-218 · AMS-R-7362 · +18 more
  5. O-RING NSN 5331-00-585-7724 P/N 7377-134 · D429PC6 · 11-106134 · PRP568-134-4067-70 · +18 more
  6. O-RING NSN 5331-00-584-1100 P/N 4141471P1 · 67G190-1 · 317843 · 182497 · +18 more
  7. O-RING NSN 5331-00-579-7548 P/N PRP1847-902 · NAS617-2 · 45-410-7-3 · 3-802 · +18 more
  8. O-RING NSN 5331-00-579-3164 P/N AS28775-425 · PRP425-8307 · 425-8307 · AS28775-425 · +18 more
  9. O-RING NSN 5331-00-537-3944 P/N 347060 · 810432V · 500186-V · LE121T SHT2,309100-1-10 FN-15 · +18 more
  10. O-RING NSN 5331-00-514-6060 P/N 7866-28 · 457-60-28 · MS29513-28 · 1793-28 · +18 more
  11. O-RING NSN 5331-00-434-1494 P/N 24FL0R · 2D3-03180-15 · D95000-225 · 7385926 FIND NO. 189 · +18 more
  12. O-RING NSN 5331-00-338-1441 P/N N04586 · AMS7259D · AS3581-229 · M83248/2-229 · +18 more
  13. O-RING NSN 5331-00-292-0578 P/N AS28775-334 · 334-7377 · 7377-334 · PRP568-334-4067-70 · +18 more
  14. O-RING NSN 5331-00-291-7338 P/N 7866-454 · PX1775-454 · 10V6J0-141-454 · 457-60-454 · +18 more
  15. O-RING NSN 5331-00-291-4879 P/N 7866-262 · MS29513-262 · 457-60-262 · MS29513-262 · +18 more
  16. O-RING NSN 5331-00-291-3271 P/N 7866-274 · 60-P-31-274 · 10V60-141-274 · PX1775-274 · +18 more
  17. O-RING NSN 5331-00-252-6058 P/N 7866-143 · 60-P-31-143 · PX-1775-143 · 10V60-141-143 · +18 more
  18. O-RING NSN 5331-00-251-9372 P/N MS29513-341 · 7866-341 · 60-P-31-341 · PX1775-341 · +18 more
  19. O-RING NSN 5331-00-196-5330 P/N 15731P11 · PRP902-45 · I7670 · AN6227-45 · +18 more
  20. O-RING NSN 5331-00-194-3739 P/N H1346PC102 · B36-1346REVAPC102 · P2703REVAPCAN6230-31 · P3134REVAPCAN6230-21 · +18 more
  21. O-RING NSN 5331-00-171-8248 P/N 252734R1 · 252734R1 · ADG5877A · 282-7804-771421PC13 · +18 more
  22. O-RING NSN 5331-00-167-5159 P/N 522 5489288 REV · 5489287 ITEM 17 · 3427RA PIECE 21 · 3426RA PIECE 19 · +18 more
  23. O-RING NSN 5331-00-167-5141 P/N 803-7106793-8-OB-4-124 · AMS7276G · AS3209-258 · AMS7276 · +18 more
  24. O-RING NSN 5331-00-165-1949 P/N AS3209-231 · 63997-22 · 845-4687577 ITEM 57 · M83248/1-231 · +18 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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