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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 5331-00-548-4334 P/N AS568-137AMS7259 CP · AS568-137MILP25897CL2 · ARP568-137MILR25897CL2 · 4405591-1373 · +13 more
  2. O-RING NSN 5331-00-530-1995 P/N 546828 · AA440REVAPC16 · PK1445 · AA400REVAITEM16 · +13 more
  3. O-RING NSN 5331-00-482-1596 P/N 81635 · D2000-M2AA810A13EA14F17 · AS568-008 · AS568B-008 · +13 more
  4. O-RING NSN 5331-00-470-6005 P/N AS568-920 · AS568-920 · 132-116937-014 · 3-920 · +13 more
  5. O-RING NSN 5331-00-470-2998 P/N 7866-350 · 60-P-31-350 · PX1775-350 · 10V60-141-350 · +13 more
  6. O-RING NSN 5331-00-469-3556 P/N 7866-163 · PX1775-163 · 10V60-141-163 · PRP568-163-457-60 · +13 more
  7. O-RING NSN 5331-00-467-0195 P/N 7866-365 · 60-P-31-365 · PX1775-365 · 10V60-141-365 · +13 more
  8. O-RING NSN 5331-00-451-9557 P/N C3-222 43-02-08 ITEM 48 · 172000254 · OR40 · 985 ITEM 17 · +13 more
  9. O-RING NSN 5331-00-448-8152 P/N 5P-8215 · 7052637 · 7052637-03 · 10617878-129 · +13 more
  10. O-RING NSN 5331-00-432-4792 P/N 022-8307 · PRP022-8307 · 6914616-022 · AS568-022AMS3215 · +13 more
  11. O-RING NSN 5331-00-431-1153 P/N 33M17 · PX1775-466 · 10V60-141-466 · RT253-65-466 · +13 more
  12. O-RING NSN 5331-00-404-4581 P/N 7866-168 · PX1775-168 · 10V60-141-168 · 457-60-168 · +13 more
  13. O-RING NSN 5331-00-322-2149 P/N 906-02-739-90 · 9-02-4081-85 · M83461/2-902 · AMS-P-83461 · +13 more
  14. O-RING NSN 5331-00-301-5074 P/N GS570EM165 · 7866-165 · PX1775-165 · 165-C-69 · +13 more
  15. O-RING NSN 5331-00-297-5338 P/N 7866-429 · 60-P-31-429 · PX1775-429 · 10V60-141-429 · +13 more
  16. O-RING NSN 5331-00-291-3066 P/N 940051 · 95-5 · 940051 · AS3570-212 · +13 more
  17. O-RING NSN 5331-00-291-2413 P/N 3245059 · 3210459 · 3210459 · 3245059 · +13 more
  18. O-RING NSN 5331-00-231-7716 P/N 7866-154 · 60-P-31-30 · 10V60-141-154 · 457-60-154 · +13 more
  19. O-RING NSN 5331-00-224-4699 P/N 332C8196-3 · PRP914-37-711-70 · R-845 PIECE 27 · BK37 · +13 more
  20. O-RING NSN 5331-00-197-9607 P/N 1JH3423-20 · AN6227-67 · 6800-723649PCV3 · MS11609PC10 · +13 more
  21. O-RING NSN 5331-00-196-5336 P/N 902-52 · PRP902-52 · 13932 · 13932 · +13 more
  22. O-RING NSN 5331-00-171-9916 P/N 4-B8076F-ITEM 6 · DS947032CPIECE7 · 182MGV1 · MILP5516CLASSA · +13 more
  23. O-RING NSN 5331-00-167-5158 P/N 6640222 FIND 11 · 522 5489363 REV · 845-7285216 ITEM 44 · AS3209-333 · +13 more
  24. O-RING NSN 5331-00-167-5153 P/N 288365-200ITEM1 · 298365-100ITEM1 · DD-4905 REF NO 14 · DD-4520 REF NO 14 · +13 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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