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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 5331-00-914-1118 P/N 19517-9CP · 19517PC9 · 21-19589PC38 · 19519-9 · +12 more
  2. O-RING NSN 5331-00-901-2669 P/N 318S15 · 318S15 · PRP568-237-4024-65 · AS3578-237 · +12 more
  3. O-RING NSN 5331-00-900-9428 P/N ARP568-214 · AMS7259 · AS568-214 · MILG23652 · +12 more
  4. O-RING NSN 5331-00-860-2395 P/N 7866-160 · 60-P-31-160 · PX1775-160 · 10V60-141-160 · +12 more
  5. O-RING NSN 5331-00-832-9513 P/N P40407 · 2-133N219-7 · 2-133N674-70 · 2-133 N674-70 · +12 more
  6. O-RING NSN 5331-00-828-0437 P/N 266-1487 · PRP266-1487 · S8171AM107 · PRP568-266-4077 70 · +12 more
  7. O-RING NSN 5331-00-821-2368 P/N ARP568-904MILG23652TYPE2 · AS568-904 MIL-G-23652 TYPE 2 · 5331PL1279866 · 72201-07X2PC25 · +12 more
  8. O-RING NSN 5331-00-814-0722 P/N H599070010 · 0912100-04 · ARP568-010-2-01 · 2-010E515-8 · +12 more
  9. O-RING NSN 5331-00-802-1360 P/N 39362 · R00326-034-70BN · PRP568-034-4024-65 · ARP568-034 · +12 more
  10. O-RING NSN 5331-00-800-2631 P/N NAS1593-222 · 33150 · 33139PC24 · 060959-222 · +12 more
  11. O-RING NSN 5331-00-797-2502 P/N 3188615PIECE26 · 803-1385721-7 P · 8451889584-10-1 · D41907TVPC10-1BUNAN · +12 more
  12. O-RING NSN 5331-01-549-4704 P/N 7550478-264382086-30 · 845-7284928 ITEM 30 · AS3209-214CP · AS3208-214 CP · +12 more
  13. O-RING NSN 5331-01-549-2437 P/N 7550478-281744-0006-62 · 281744-0006-62 · G547-0002-281744-0006-62 · 281250-0010-62 · +12 more
  14. RETAINER BACK-UP NSN 5331-01-530-9795 P/N 803-6397304-XX-12 · 7550479-6397304-12 · 7550478-6397304-12 · AS8791/1-009 · +12 more
  15. O-RING NSN 5331-01-478-7287 P/N 2002163 · 12640524 · 8HB359 · R0122418 · +12 more
  16. O-RING NSN 5331-01-084-1200 P/N 213-7507 · AS568-213 · D200M3CH714A25B34EO16EO36 · 500000-0018-0002 · +12 more
  17. O-RING NSN 5331-01-069-7609 P/N 7866-11 · 60-P-31-11 · PX-1775-11 · 10V60-141-11 · +12 more
  18. O-RING NSN 5331-01-052-2315 P/N 2-035 · AS568-035 · MIL-G-21569 · 2-035N674-70 · +12 more
  19. O-RING NSN 5331-01-051-5542 P/N ARP568-042MILP25732 · P48026-042 · 177711-042 · PRP568-042-4067-70 · +12 more
  20. O-RING NSN 5331-01-032-3546 P/N MS9967-014 · MS9967-014 · 640594 · 572091 · +12 more
  21. O-RING NSN 5331-01-031-8243 P/N 01-435-0366-4 PIECE 81 · 2507294-55 · CM1-158-B46 · P49708-0158 · +12 more
  22. O-RING NSN 5331-01-031-1327 P/N 36N0674-70 · B398036-72 · E3650 2.00IN PC NO 30 · 2507294-22 · +12 more
  23. O-RING NSN 5331-00-702-4716 P/N MS29651-226 · PRP909-4142-70 · 84892-2 · 51127-4 · +12 more
  24. O-RING NSN 5331-00-684-2070 P/N 902-4-7188 · 009-7188 · 457-60-9 · 29513-9 · +12 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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