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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 5331-01-167-1897 P/N 360-8307 · 10500249 · 10500249 · PRP360/7507 · +1 more
  2. O-RING NSN 5331-01-164-8556 P/N AS3582-433 · MS9068-433 · MS9068-433 ZZ-R -765CL2BGR70 · MS9D068-433 · +1 more
  3. O-RING NSN 5331-01-164-3460 P/N M83249/2-032 · M83248/2-032CP · 54370-6 ITEM 22 · 54370-6 ITEM 22CP · +1 more
  4. O-RING NSN 5331-01-163-9785 P/N 67107 · 767878-1 · 767878 · 5331PL0848111 · +1 more
  5. O-RING NSN 5331-01-160-8880 P/N CM1-112-B46A · E-73632 · E-73632-126 · LO1524 · +1 more
  6. O-RING NSN 5331-01-160-4350 P/N AS29513-371 · MS29513-371 · MS29513-371 · SAE-AS29513 · +1 more
  7. O-RING NSN 5331-01-160-2085 P/N MS28775-021 · 5330PL0887867 · MS28775-021 · SAE-AS28775 · +1 more
  8. O-RING NSN 5331-01-160-2083 P/N MS28775-139 · 5330PL0892613 · MS28775-139 · MS28775-139 · +1 more
  9. O-RING NSN 5331-01-159-9370 P/N 12E108 · 12E-108 · 12E-108 · 11E108 · +1 more
  10. O-RING NSN 5331-01-159-9365 P/N 12E14 · 12E-14 · 12E-14 · 12E14 · +1 more
  11. O-RING NSN 5331-01-159-1080 P/N 2BA107 · 2BA107 · 2661058A013 · 2661058A013 · +1 more
  12. O-RING NSN 5331-01-157-1884 P/N 5740436 · 5688035 · 5688035 · 5331PL0779088 · +1 more
  13. O-RING NSN 5331-01-156-5134 P/N AS568-246AMS7277 · A7277-246 · 1JA3368J77 · 2-246B612-70 · +1 more
  14. O-RING NSN 5331-01-155-7704 P/N AS3581-149 · M83248/2-149 · 5331PL1263815 · SAE-AS3581 · +1 more
  15. O-RING NSN 5331-01-155-7701 P/N 15547030 · 15547030 · 15547030 · 2770614 · +1 more
  16. O-RING NSN 5331-01-154-7157 P/N AS3578-257 · 5331PL1326066 · MS9021-257 · AS3578-257 · +1 more
  17. O-RING NSN 5331-01-154-0645 P/N 691-00125-0 · 691-00125-0 · 691-00125 · 033-00125 · +1 more
  18. O-RING NSN 5331-01-152-4959 P/N PL-843504-1 PIE · MS28775-168 · MS28775-168 · MS28775-168 · +1 more
  19. O-RING NSN 5331-01-151-4929 P/N 40402-09 FIND N · 40402-09 FIND 9 · 428-01 · 758 · +1 more
  20. O-RING NSN 5331-01-150-5926 P/N NAS1611-427 · NAS1613 · AS568-427NAS1613 · 2-427 E515-80 · +1 more
  21. O-RING NSN 5331-01-150-5925 P/N NAS1611-241 · NAS1613 · AS568-241NAS1613 · 2-241-E515-80 · +1 more
  22. O-RING NSN 5331-01-149-7727 P/N 39275 · E-8709487 ITEM 132 AND 153 · 7435500 · 74355 · +1 more
  23. O-RING NSN 5331-01-149-5969 P/N MIL-R-25988/3 · MIL-DTL-25988/3 · M25988/3-170 · 10117171 · +1 more
  24. O-RING NSN 5331-01-149-5963 P/N MS28775-368 · MS28775-368 · 2-368 N674-70 · SAE-AS28775 · +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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