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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 5331-00-822-2082 P/N 13446A · SP3123 · 13446A · 106957 · +13 more
  2. O-RING NSN 5331-00-814-2058 P/N AS3582-026 · 1320331-18 · T3-6515-130 · AS3582-026 · +13 more
  3. O-RING NSN 5331-00-811-6503 P/N S8057V17 · 51126-17 · S8057V17 · 212-1487-70 · +13 more
  4. O-RING NSN 5331-01-550-4833 P/N DF330613 FIND NO 22 · 7550478-DF330613-022 · 801-6408529 FIND NO 22 · 7383858-DF330613-97-22 · +13 more
  5. O-RING NSN 5331-01-388-9207 P/N ST1946-131 · ST1946-131 · ST1946-131 · ST1946-131 · +13 more
  6. O-RING NSN 5331-01-387-7506 P/N 2-157N756-75 · 07A568-157N · 803-7106793-4-2-031 · 803-7106793-4-1-031 · +13 more
  7. O-RING NSN 5331-01-088-6873 P/N A80403-009 · 845-2110227PC27 · M83461/1-009 · AMS-P-83461/1 · +13 more
  8. O-RING NSN 5331-01-078-2379 P/N ARP568-043MILP25732 · P48026-043 · 16606A54-219 · PRP568-043-4067-70 · +13 more
  9. O-RING NSN 5331-01-067-9694 P/N 2CD827 · DD-1530 PIECE 10 · 2CD827 · PRP568-165-4067-70 · +13 more
  10. O-RING NSN 5331-01-049-7374 P/N P48026-032 · PRP568-032-4067-70 · MS28775-032 · 5331PL1247737 · +13 more
  11. O-RING NSN 5331-01-045-5604 P/N AS568-132MIL-R-83248CLASS2 · AS568-132MILG23652TYPE2 · AS568-132 · AMS7259 · +13 more
  12. O-RING NSN 5331-01-044-2309 P/N 28111901 · 102A10001-23 · 1095PC24 · AS568-033MIL-G- 21569B CLASS 1 · +13 more
  13. O-RING NSN 5331-01-040-1509 P/N 7866-474 · PX1775-474 · 10V60-141-474 · PRP568-474-60 · +13 more
  14. O-RING NSN 5331-00-729-5254 P/N 014-1487 · PRP014-1487 · MS29561-014 · 5331PL1279829 · +13 more
  15. O-RING NSN 5331-00-720-2130 P/N 2-346-77-545 · 6227-49-77-545 · 597-518-1884492REVAPC7 · 593-514-1862802PC15VIT0N · +13 more
  16. O-RING NSN 5331-00-618-2267 P/N 7377-439 · P48026-439 · 1820-66 · 4067-70-439 · +13 more
  17. O-RING NSN 5331-00-599-0711 P/N SG3032PC19 · SG2475REV1PC19 · SG2758REVAPC19 · SG2473REV1PC19 · +13 more
  18. O-RING NSN 5331-00-599-0554 P/N 7866-433 · 60-P-31-433 · 640832-2 · PX1775-433 · +13 more
  19. O-RING NSN 5331-00-585-3355 P/N 317S25 · H-5478753PC27 · 182496 · 69890-25 · +13 more
  20. O-RING NSN 5331-00-582-7485 P/N 317S9 · 182483 · 69890-9 · PRP568-111-4024-65 · +13 more
  21. O-RING NSN 5331-00-579-7543 P/N 7377-336 · P48026-336 · PRP568-336-4067-70 · 4067-70-336 · +13 more
  22. O-RING NSN 5331-00-579-7190 P/N PRP568-437-4067-70 · MS28775-437 · RE0267241 · MS28775-437 · +13 more
  23. O-RING NSN 5331-00-565-5447 P/N 7866-468 · PX1775-468 · 10V60-141-468 · PRP568-468-60 · +13 more
  24. O-RING NSN 5331-00-556-7768 P/N 7866-172 · PX1775-172 · 10V60-141-172 · 457-60-172 · +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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