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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 5331-01-230-9782 P/N AS28775 · MS28775-376 · AS568-376MILP25732 · MIL-P-25732 · +21 more
  2. O-RING NSN 5331-01-039-3076 P/N R4512 · MS28775-251 · 55-22036 PART 1 · 1-11-150-43 · +21 more
  3. O-RING NSN 5331-01-031-8207 P/N 2507294-69 · N04877 · 634878 · 2507294-69 · +21 more
  4. O-RING NSN 5331-00-641-4354 P/N 004-7866 · 7866-004 · 60-P-31-004 · R1307P004 · +21 more
  5. O-RING NSN 5331-00-641-1481 P/N 7377-332 · 332-7377 · P48026-332 · PRP568-332-4067-70 · +21 more
  6. O-RING NSN 5331-00-618-3754 P/N 123-7377 · MS28775-123 · PRP568-123-4067-70 · MS28775-123 · +21 more
  7. O-RING NSN 5331-00-585-3558 P/N 914-1 · SP3501 · N95-81606 · N882PC44 · +21 more
  8. O-RING NSN 5331-00-531-2071 P/N NAS617-12 · 8527350 · PRP1847-912 · LD261-0013-0012 · +21 more
  9. O-RING NSN 5331-00-435-8522 P/N 7866-150 · 60-P-31-150 · PX-1775-150 · 10V60-141-150 · +21 more
  10. O-RING NSN 5331-00-395-5737 P/N 16486 · 17KP661 · 2HK146 · 2HK146 · +21 more
  11. O-RING NSN 5331-00-291-3276 P/N GS570EM266 · 7866-266 · 60-P-31-266 · PX1775-266 · +21 more
  12. O-RING NSN 5331-00-288-1976 P/N M25988-1-904 · 904-11647 · MS259881-1-904 · 571034-04 · +21 more
  13. O-RING NSN 5331-00-274-7857 P/N 7866-038 · GS570EM038 · 60-P-31-038 · PX-1775-038 · +21 more
  14. O-RING NSN 5331-00-263-8017 P/N 7866-246 · 60-P-31-246 · 59507 · PX1775-246 · +21 more
  15. O-RING NSN 5331-00-263-8007 P/N 7866-268 · GS570EM268 · 60-P-31-268 · PZ1775-268 · +21 more
  16. O-RING NSN 5331-00-252-6053 P/N 7866-140 · 60-P-31-140 · MS29513-140 · E0224PC17 · +21 more
  17. O-RING NSN 5331-00-252-6051 P/N MS29513-330 · 7866-330 · PGF9648-6 · 10V60-141-330 · +21 more
  18. O-RING NSN 5331-00-252-6049 P/N 7866-137 · 60-P-31-137 · 3016 · PX-1775-137 · +21 more
  19. O-RING NSN 5331-00-251-9376 P/N AS568-241-N70R · GS570EM241 · 7866-241 · 60-P-31-241 · +21 more
  20. O-RING NSN 5331-00-198-6168 P/N 92375 · FS035-1PC91 · FSC35PC91 · FSN35GPC69 · +21 more
  21. O-RING NSN 5331-00-167-5157 P/N 5489362 FIND 8 · 845-7286651 ITEM 32 · 845-7108795 ITEM 17 · 522 5489362 REV · +21 more
  22. O-RING NSN 5331-00-167-5144 P/N D49445-VTN ITEM NO. 28 · S9413-261 · 191 · 309-D ITEM 4 · +21 more
  23. O-RING NSN 5331-00-165-1976 P/N 918-19357 · PRP918-19357 · D1000FF ITEM 32 · D1000 ITEM 36 · +21 more
  24. O-RING NSN 5331-00-165-1966 P/N AMS7276 · AS3209-251 · M83248/1-251 · MIL-R-83248/1 · +21 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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