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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 5331-01-125-9041 P/N ST1946-008 · ST1946-008 · ST1946-008 · ST1946-008 · +12 more
  2. O-RING NSN 5331-01-115-8224 P/N 29KP564 · 29KP564 · AS568B-015 · AS568-015 · +12 more
  3. O-RING NSN 5331-01-113-2084 P/N 7377-358 · Y109101004N ITEM 40 · 7307394 · P48026-358 · +12 more
  4. O-RING NSN 5331-01-111-9051 P/N 7377-324 · P48026-324 · 4067-70-324 · AS28775-324 · +12 more
  5. O-RING NSN 5331-01-106-7288 P/N 218-17159 · D42042 PIECE 9M · 721-7069909-58 · AS3581-218 · +12 more
  6. O-RING NSN 5331-01-106-0936 P/N 117-16209 · PRP117-16209 · 47-0117-08 · 69494R117 · +12 more
  7. O-RING NSN 5331-01-101-8015 P/N 7377-034 · P48026-034 · 4067-70-034 · AS28775-034 · +12 more
  8. O-RING NSN 5331-01-101-2421 P/N 7377-382 · P48026-382 · 4067-70-382 · AS28775-382 · +12 more
  9. O-RING NSN 5331-01-028-6510 P/N 7866-387 · 60-P-31-387 · PX1775-387 · 10V60-141-387 · +12 more
  10. O-RING NSN 5331-01-017-6535 P/N 593-6961310PC15 · AS3581-214 · AMS7259 · M83248/2-214 · +12 more
  11. O-RING NSN 5331-01-013-3718 P/N S9413-045 · S9413-045 · M83248/1-045 · AS3209-045 · +12 more
  12. O-RING NSN 5331-01-007-1627 P/N PRP221-11646 · 221-11646 · B63115-221 · PRP568-221-1133-60 · +12 more
  13. O-RING NSN 5331-01-006-9054 P/N 571041 · MIL-R-25988/1 · MIL-DTL-25988/1 · M25988/1-910 · +12 more
  14. O-RING NSN 5331-01-006-5470 P/N 7052637-11 · AS568-121 · 2-121N674-70 · 3-4BUNABODYSEAL44 · +12 more
  15. O-RING NSN 5331-01-005-3203 P/N 845-7285216 ITEM 45 · 845-455-8734 · AS3209-274 · MIL-R-83248/1 · +12 more
  16. O-RING NSN 5331-01-005-0521 P/N 9464K66 · AMS7276 · AS3209-206 · M83248/1-206 · +12 more
  17. O-RING NSN 5331-01-005-0504 P/N M83248/1-104 · AMS7276 · AS3209-104 · M83248/1-104 · +12 more
  18. O-RING NSN 5331-01-004-7231 P/N AS568-129MILP5516-70DURM · MS28775-129 · MS28775-129 · 5331PL0892865 · +12 more
  19. O-RING NSN 5331-00-992-8568 P/N N0674 2-333 · 331-8307 · PRP331-8307 · R67500-49 · +12 more
  20. O-RING NSN 5331-00-983-9878 P/N R909086008 · 09086008 · 50323 · 10617878-244 · +12 more
  21. O-RING NSN 5331-00-937-1333 P/N 326-11646 · PRP326-11646 · B63115-326 · PRP568-326-1133-60 · +12 more
  22. O-RING NSN 5331-00-935-9270 P/N PRP231-11737 · 231-11737 · S8990-231 · 114950-109 · +12 more
  23. O-RING NSN 5331-00-925-7827 P/N 7866-438 · 60-P-31-438 · PX1775-438 · 10V60-141-438 · +12 more
  24. O-RING NSN 5331-00-916-6639 P/N 484-851 · AS568-011 · 484-851 · 484 794 · +12 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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