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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 5331-01-365-8126 P/N AS3209-357 · AS43013-357 · AS3209-357 · SAE-AMS7276
  2. O-RING NSN 5331-01-365-5781 P/N 937748162U01 · 98064F91-ITEM 19 · 98064F91-ITEM 19 · 937748162U01
  3. O-RING NSN 5331-01-365-5780 P/N 5-036-08-048-012 PIECE 13 · 5-036-08-048-011 PIECE 13 · 3-355-8-72-100-02 · D4-224E005
  4. O-RING NSN 5331-01-365-4787 P/N 6628701-3708 · 2.72-34072-3708 · VN3014 1725X5 · 2.72-34072-3708
  5. O-RING NSN 5331-01-365-3101 P/N NAS1611-251 · NAS1613 · NAS1611-251A · NAS1601-251
  6. O-RING NSN 5331-01-365-1459 P/N 2002AS564-1 · 2002AS5564-1 · 3356AS564-1 · 2002AS564-1
  7. O-RING NSN 5331-01-365-1064 P/N NAS1613 REV 5 · NAS1601 · NAS1601-130 · NAS1611-130A
  8. O-RING NSN 5331-01-364-9902 P/N GS901600 · 3356AS804-1 · 2002AS804-1 · GS901600
  9. O-RING NSN 5331-01-364-5819 P/N AS3578-468 · MS9021-468 · SAE-AS3578 · AS3578-468
  10. O-RING NSN 5331-01-364-3808 P/N NAS1611-163 · NAS1613 · NAS1601-163 · NAS1611-163A
  11. O-RING NSN 5331-01-364-3539 P/N 083742 · US00800507 · R978800507 · 2HL276
  12. O-RING NSN 5331-01-364-1518 P/N 1 810 210 120 · 2.72-34261-800 · 1 810 210 120 · 1 810 210 120
  13. O-RING NSN 5331-01-363-9568 P/N AMS-P-83461 · M83461/1-012 · M83461/1-012 · MIL-P-83461
  14. O-RING NSN 5331-01-363-4404 P/N 100-007-8814 · 100-007-8814 · A-0S-014073-01 · 100-007-8814
  15. O-RING NSN 5331-01-363-1608 P/N 3-355-8-00-101-04 · 5-036-06-036-005 PIECE 13 · 5-036-06-036-005 PIECE 13 · 3-355-8-00-101-04
  16. O-RING NSN 5331-01-363-1572 P/N 319528 · 319528 · 319528 · ZB0319528
  17. O-RING NSN 5331-01-363-0615 P/N 4K1-75 · FFG-300 ITEM 58 · 5331PL0914067 · 4K1-75
  18. O-RING NSN 5331-01-363-0614 P/N 4K1-80 · FFG-300 ITEM 51 · 5331PL0914003 · 4K1-80
  19. O-RING NSN 5331-01-362-9875 P/N H-45112-2-21260 · US-70293 ITEM 43 · US-70293 ITEM 43 · US-70293 ITEM 43
  20. O-RING NSN 5331-01-362-7304 P/N 100-144-8803 · 10117190 · 30-781-1209-01 · 100-144-8803
  21. O-RING NSN 5331-01-361-7913 P/N 1361528 · 9113120340 · 9113120340 · 1361528
  22. O-RING NSN 5331-01-361-6959 P/N 802CX77 · 802CX77 · 10176649 · 28-P-191
  23. O-RING NSN 5331-01-361-5336 P/N CP030E515-80 · CP031B030C3 · V2030E515-80 · CP031B030C3
  24. O-RING NSN 5331-01-361-3229 P/N 600-275 · ST7M258H275 · 10117189 · 600-275

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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