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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 5331-01-330-7620 P/N M83461/1-282 · M83461/-280 · AMS-P-83461 · MIL-P-83461 · +5 more
  2. O-RING NSN 5331-01-326-9281 P/N 2-439 · B-9837 ITEM 12 · 2-439E515-8 · NAS1613 · +5 more
  3. O-RING NSN 5331-01-323-2728 P/N 24311-000180 · 114299-01950 · 24311-000180 · 5331PL0806224 · +5 more
  4. O-RING NSN 5331-01-319-3441 P/N AS3581-213 · M83248/2-213 · PLC-10864 ITEM 13 · PL-3512 PIECE 13 · +5 more
  5. O-RING NSN 5331-01-317-6350 P/N 904-3177 · 904-3178 · 10134-1 · 10134 · +5 more
  6. O-RING NSN 5331-01-317-3980 P/N 969198-1 · 967643-8 · 969198-1 · 969198-1 · +5 more
  7. O-RING NSN 5331-01-315-3438 P/N 23378 · 023378 · L566/40-11 · 566/44 ITEM 11 · +5 more
  8. O-RING NSN 5331-01-314-7237 P/N AS3209-127 CP · M83248/1-127 · V3D10042 ITEM 14 · L180-127 · +5 more
  9. O-RING NSN 5331-01-310-7664 P/N 2850-0001-7 FIND 24 · AS3209-224CP · NAS1593-224 · M83248/1-224CP · +5 more
  10. O-RING NSN 5331-01-306-9605 P/N 216-4363322 BC-F20 · AS28778-6 · MS28778-6 · NG12253ITEM92 · +5 more
  11. O-RING NSN 5331-01-304-5154 P/N 2626744G002 · SC-22-070 · 91636310 · 30-03-2068-1215 · +5 more
  12. O-RING NSN 5331-01-301-9611 P/N US-70610 ITEM 29 · H-45112-3 · US-70610 ITEM 29 · US73132-01 · +5 more
  13. O-RING NSN 5331-01-301-7868 P/N 704-4644361 F24 · AMS07259D · AS3581-269 · M83248/2-269 · +5 more
  14. O-RING NSN 5331-01-301-4994 P/N 453 8742-724 · A0169973948 · 0169973948 · 0169973948 · +5 more
  15. O-RING NSN 5331-01-301-4987 P/N 129976548 · 4538742-799 · 0059977040 · 129976548 · +5 more
  16. O-RING NSN 5331-01-301-4986 P/N 0119972248 · 453 8742-757 · 0119972248 · 0169970448 · +5 more
  17. O-RING NSN 5331-01-299-7326 P/N 11338 · 11338 · 11338B · 3537 MOD ITEM 11 · +5 more
  18. O-RING NSN 5331-01-289-3213 P/N M83485/114 · AMS-R-83485/1-114 · M83485/114 · 5331PL2213068 · +5 more
  19. O-RING NSN 5331-01-287-4818 P/N MS28775-130 · 5331PL2247990 · A180-130 · MS28775-130 · +5 more
  20. O-RING NSN 5331-01-285-0668 P/N MS28775-432 · AS28775 · MIL-P-25732 · PL-11761-F-18ITEM456B · +5 more
  21. O-RING NSN 5331-01-285-0546 P/N 313-7377-70 · PRP568-313-4067-70 · MS28775-313 · SR832-75-313 · +5 more
  22. O-RING NSN 5331-01-283-2522 P/N AMS-P-83461 · M83461/1-438 · MS28775-483 · SAE-AS28775 · +5 more
  23. O-RING NSN 5331-01-278-8285 P/N 551-6685221-6 · 9223-P341 · AS3581-155 · MIL-R-83248/2 · +5 more
  24. O-RING NSN 5331-01-277-6587 P/N 23035806-134 · AS3085-134 · 23035806-134 · AS3085-134 · +5 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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