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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 5331-01-253-5939 P/N AS3581-132 · M83248/2-132 · 5331PL1291629 · AS3581-132 · +1 more
  2. O-RING NSN 5331-01-253-0608 P/N V3997PC20 · M83248-1-115 · V7519 · 20-03273PC13 · +1 more
  3. O-RING NSN 5331-01-252-7151 P/N WG130451 · D320448 FIND 59 · E103972 FIND NO 38 · WG130451 · +1 more
  4. O-RING NSN 5331-01-252-7150 P/N PK405D1532B-9-19 · PK405D1532B-8-19 · PK405D1532B-8-19 · PK405D1532B-8-1 9 · +1 more
  5. O-RING NSN 5331-01-251-7579 P/N NE-39-8273 · 5331PL0166451 · 9169M40P138 · 9169M40P138 · +1 more
  6. O-RING NSN 5331-01-251-2931 P/N 0119000005 · 0119000005 · 1978158C1 · 0119000005 · +1 more
  7. O-RING NSN 5331-01-250-1385 P/N D319206 FIND 59 · D305308 FIND 72 · WG130449 · D319206 FIND 59 · +1 more
  8. SEAL,ENCASED PLAIN NSN 5331-01-249-1629 P/N 23500139 · 5331012491629 · 5330012491629 · 23500417 · +1 more
  9. O-RING NSN 5331-01-247-1696 P/N 361-0643C031A02 · 468-1161-01 · 10163436 · 5-136 E540-80 · +1 more
  10. O-RING NSN 5331-01-246-3904 P/N 204564 · 5-584N219-7 · N0674 5-584 · 5-584N674-70 · +1 more
  11. O-RING NSN 5331-01-246-3893 P/N 105-310-099 · 221690000 ITEM 3 · R907105310 · 105-310-099 · +1 more
  12. O-RING NSN 5331-01-246-2540 P/N 68571P0P7 · 5295-41 · 5295-41 · 68571P0P7 · +1 more
  13. O-RING NSN 5331-01-245-7216 P/N MS28775-238 · MS28775-238 · SAE-AS28775 · MS28775-238 · +1 more
  14. O-RING NSN 5331-01-245-3599 P/N 16360-308 · 16306-308 · 5000427-5B · 5000427 ITEM 5B · +1 more
  15. O-RING NSN 5331-01-245-3167 P/N 2BD993 · 2BD993 · 410.507 · 410507 · +1 more
  16. O-RING NSN 5331-01-244-7584 P/N 5530-210 · 5530-210 · C-6193 ITEM 16 · 5330-210 · +1 more
  17. O-RING NSN 5331-01-244-4015 P/N MS29512-09 · MS29512-09 · MS29512-09 · MS29512-09 · +1 more
  18. O-RING NSN 5331-01-244-2273 P/N 5KK332 · 019350800 · 230515 064400 · 5KK332 · +1 more
  19. O-RING NSN 5331-01-243-4495 P/N MIL-R-25988/4 · M25988/4-920 · MIL-R-25988/4 · MIL-DTL-25988/4 · +1 more
  20. O-RING NSN 5331-01-242-0713 P/N 820-5786961-7 · PO0386NRP · PO012420713 · LO1239 · +1 more
  21. O-RING NSN 5331-01-241-5096 P/N 11200187-7 · 2-015 B612-70 · 0N351336 · 2-015 B612-70 · +1 more
  22. O-RING NSN 5331-01-241-2717 P/N R4562 · 9002100 · 5185 ITEM 78 · R 4562 · +1 more
  23. O-RING NSN 5331-01-240-9461 P/N AS3581-257 · MIL-R-83248 · M83248/2-257 · AS3581-257 · +1 more
  24. O-RING NSN 5331-01-240-5985 P/N MS28775-269 · SAE-AS28775 · OR-269 · ORH13-269-5AN-GOV-PCK · +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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