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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 5331-01-456-9156 P/N BCP8007 · 10016186 · 599807 · 5331PL2281113 · +2 more
  2. O-RING NSN 5331-01-456-4407 P/N 6758311 FIND MSAS-A36 · 211075841 · 243-6758311 FIND MSAS-A36 · 243-6758311-MSAS-A36 · +2 more
  3. O-RING NSN 5331-01-456-2694 P/N 280 087 04 ITEM 10 · 449-7546 · 102-026-33 · 102-026-33 · +2 more
  4. O-RING NSN 5331-01-456-2682 P/N 280 087 04 ITEM 25 · 449-7551 · 102-026-02 · 280 087 04 ITEM 25 · +2 more
  5. O-RING NSN 5331-01-454-8549 P/N 9112A1150-1 ITEM 7 · 51498 · 9112A1150 ITEM 7 · PL9112A1150-1 ITEM 7 · +2 more
  6. O-RING NSN 5331-01-452-5345 P/N 339-7377 · 10617997-339 · ORAR00339-N7237 · ORAR00339-N7T40 · +2 more
  7. O-RING NSN 5331-01-451-2365 P/N 4054675 · 4054675 OXYGEN CLEAN · 4054675 · 4054675 OXYGEN CLEAN · +2 more
  8. O-RING NSN 5331-01-450-4826 P/N M83248/2-202 · MIL-R-83248/2 · MIL-R-83248 · H467S001 FIND 124 · +2 more
  9. O-RING NSN 5331-01-448-9378 P/N MS9967-008 · 5330PL0970157 · MS9967-008 · SAE-AS9967 · +2 more
  10. O-RING NSN 5331-01-447-4133 P/N 5331PL1851663 · US71149 ITEM H71149-2-7 · AM1285-P407 · AM1285 · +2 more
  11. O-RING NSN 5331-01-440-8083 P/N 10089075 · 2152-2115-429 · 2152-2115-429 · 178 1301-80X ITEM 013 · +2 more
  12. O-RING NSN 5331-01-439-6677 P/N 2002312 · 9HR355 · 9HR355 · 29524448 · +2 more
  13. O-RING NSN 5331-01-438-4595 P/N 283467-0002 ITEM 61CP · 4410591-9040CP · M83248/1-904CP · 4410591-9040CP · +2 more
  14. O-RING NSN 5331-01-437-3184 P/N AMS 3209 · AS568-162 · AMS 3209 · AS568-162 · +2 more
  15. O-RING NSN 5331-01-437-0082 P/N MIL-R-25988/3 · M25988/3-244 · AMS-R-25988 · MIL-DTL-25988/3 · +2 more
  16. O-RING NSN 5331-01-436-0118 P/N MS28775-160 · MIL-P-25732 · 5331PL1994592 · MS28775-16O · +2 more
  17. O-RING NSN 5331-01-435-5805 P/N 6934998 · 6934998 · 5-565E1157-60 · 6934998 · +2 more
  18. O-RING NSN 5331-01-433-0515 P/N 21522115-208 · 2879426-801 ITEM 024 · 2152 2115-208 · 10.1X1.6NBR70 · +2 more
  19. O-RING NSN 5331-01-432-7484 P/N M83248/2-364 · MIL-R-83248/2 · RX-192369 ITEM 4.7 · M83248/2-364 · +2 more
  20. O-RING NSN 5331-01-431-3621 P/N 15841-53620 · 15841-5362-2 · 15841-5362-2 · CV147151 · +2 more
  21. O-RING NSN 5331-01-431-0505 P/N 217X059 · A3013096-8 · A3013096-8 · 217X059 · +2 more
  22. O-RING NSN 5331-01-429-5102 P/N 561-8515-0012 · 561-515-0012 · KDAC-10700 · 561-515-0012 · +2 more
  23. O-RING NSN 5331-01-429-2399 P/N 21522115-415 · 21522115-415 · 4893789-801 ITEM 001 · 4893789-801 ITE · +2 more
  24. O-RING NSN 5331-01-425-1867 P/N 21-10614 IT 14 · 462808 · 21-10614 IT 14 · SMS1586114.3X5.7 · +2 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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