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 5331-01-447-2892 P/N 4054783 OXYGEN CLEAN · 4054783 · 4054783 · 4054783 OXYGEN CLEANCP · +1 more
  2. O-RING NSN 5331-01-447-1967 P/N 4054785 · 4054785 OXYGEN CLEAN · 4054785 · 4054785 OXYGEN CLEANCP · +1 more
  3. O-RING NSN 5331-01-446-5042 P/N R4875 · 21-10923 ITEM 14 · 21-10923 ITEM 14 · R4875 · +1 more
  4. O-RING NSN 5331-01-446-1961 P/N AS3209-220 · MILR83248 · AS3209-220 · AS3209-220 · +1 more
  5. O-RING NSN 5331-01-446-0724 P/N 6914770-23 · 6195891-23 · 6914770-23 · 6914770-23ES · +1 more
  6. O-RING NSN 5331-01-446-0721 P/N 6924770-14 · 6914770-14 · 6914770-14 · 6914770-14ED · +1 more
  7. O-RING NSN 5331-01-445-5285 P/N 983568 · 15605 · 15605 · AS568-113 · +1 more
  8. O-RING NSN 5331-01-441-6402 P/N P0206600 · RX-174010 ITEM 38B · 20A11CM028 · RX-174010 ITEM 38B · +1 more
  9. O-RING NSN 5331-01-439-2613 P/N 6010000338 · CV133022 · 9X-7381 · 9X-7381 · +1 more
  10. O-RING NSN 5331-01-439-2610 P/N 10076105 · 9X-7378 · 9X-7378 · 9X-7378 · +1 more
  11. O-RING NSN 5331-01-439-0789 P/N AS3208-013 CP · M83248/1-013CP · M83248/1-013CP · 236024 ITEM 82CP · +1 more
  12. O-RING NSN 5331-01-438-9553 P/N 7052637-05 · 7052637-05 · 7052637-05 · 2-382-N674-70 · +1 more
  13. O-RING NSN 5331-01-438-1597 P/N A6689.902.142CP · A06689.902.142 · A06689.902.142CP · 06689902142 · +1 more
  14. O-RING NSN 5331-01-438-1387 P/N 10076414 · 5K-9090 · 5K-9090 · 5K-9090 · +1 more
  15. O-RING NSN 5331-01-437-8709 P/N 9680595 · GB-9680595 · 9680595 · EVB-CGB1-6 · +1 more
  16. O-RING NSN 5331-01-437-6986 P/N AMS-P-83461/M83461/1-393 · 2-393N674-70 · 147D5563PC5 · AMS-P-83461/M83461/1-393 · +1 more
  17. O-RING NSN 5331-01-437-6218 P/N 211051588 · AS3581-173 · M83248/2-173 · SAE-AS3581 · +1 more
  18. O-RING NSN 5331-01-437-4026 P/N 959674 ITEM 11 · SKEGA · 959674 ITEM 11 · 959674 ITEM 11 · +1 more
  19. O-RING NSN 5331-01-436-6191 P/N MIL-R-83248/2 · M83248/2-445 · MIL-R-83248 · SAE-AS83248/2 · +1 more
  20. O-RING NSN 5331-01-435-7119 P/N L90LS-LSPB ITEM 23 · 0663 9099 01 · 0663 9099 01 · L90LS-1206 · +1 more
  21. O-RING NSN 5331-01-434-8658 P/N 973527A/5 · N23P3AKZ5 · 973527/5 · 973527/5 · +1 more
  22. O-RING NSN 5331-01-433-0516 P/N 2879426-801 ITEM 023 · 13.95X2.62NBR70 · 21522115-813 · 21522115-813 · +1 more
  23. O-RING NSN 5331-01-432-0001 P/N 465080 · P1-14131 PC19 · 004251 · 465080 · +1 more
  24. O-RING NSN 5331-01-431-3610 P/N DNX62FF-8-16 ITEM 21 · DNX62FF-8-16 ITEM 19 · DNX62FF-8-16 ITEM 19 · DNX62FF-8-16 ITEM 21 · +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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