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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 5331-01-354-0237 P/N MS9386-035 · MS9386-035 · SAE-AS9386 · MS9386-035
  2. O-RING NSN 5331-01-353-3477 P/N 30530 1-628-5.0 0 · 30530 1-628-5.5 00 · 20530 1-628-5.00 · 00120 D5X8S510 FIND 10
  3. O-RING NSN 5331-01-353-2068 P/N 686ATB · CW-2300CW PIECE 621 · CW-686ATA SYMBOL 686ATB · CW-686ATB
  4. O-RING NSN 5331-01-353-2067 P/N 400-1723 · HAL-17-1723 · HAL-20-MIL-1000-80PC25 · 100-1000-80
  5. O-RING NSN 5331-01-352-9339 P/N 8T-1919 · 50028653 · 8T-1919 · 8T1919
  6. O-RING NSN 5331-01-352-1161 P/N 6V-3602 · 6V-3602 · 6V3602 · 9Y6515 ITEM 15
  7. O-RING NSN 5331-01-352-1087 P/N 8C-3103 · 8C-3103 · 8C3103 · 9Y6531 ITEM 4
  8. O-RING NSN 5331-01-351-8654 P/N AS43013-225 · 99-567-0411 · 99-567-0411 · AS43013-225
  9. O-RING NSN 5331-01-351-7609 P/N 310327 · 310327 · 310327 · 310327
  10. O-RING NSN 5331-01-351-6993 P/N N16591 · 10013666 · 5920050943 · 5920050943
  11. O-RING NSN 5331-01-351-6991 P/N 5700594 · 5700594 · 9799 · 9799
  12. O-RING NSN 5331-01-351-6355 P/N 55811 · 9751 · 55811 · 9751
  13. O-RING NSN 5331-01-351-5348 P/N 5P-7818 · 5P-7818 · 9Y6536 ITEM 9 · 5P7818
  14. O-RING NSN 5331-01-351-5347 P/N 6V-5060 · 6V-5060 · 9Y8750 IT 11 · 6V5060
  15. O-RING NSN 5331-01-351-3540 P/N 5P-6619 · 5P-6619 · 9Y6623 ITEM 31 · 5P6619
  16. O-RING NSN 5331-01-351-2748 P/N 17210 · 17210 · 17210-7 · 17210
  17. O-RING NSN 5331-01-351-2742 P/N 6V-5064 · 6V-5064 · 7E2502 ITEM 8 · 6V5064
  18. O-RING NSN 5331-01-351-2741 P/N 6V-5061 · 6V-5061 · 6V5061 · 7E2502 ITEM 4
  19. O-RING NSN 5331-01-351-2740 P/N 8C-9023 · 8C-9023 · 9Y6915 ITEM 5 · 8C9023
  20. O-RING NSN 5331-01-351-2737 P/N 6V-5058 · 6V-5058 · 6V5058 · 9Y6523 ITEM 7
  21. O-RING NSN 5331-01-351-2735 P/N 6V-5095 · 6V-5095 · 9Y6548 ITEM 11 · 6V5095
  22. O-RING NSN 5331-01-351-2731 P/N 1W-3557 · 1W-3557 · 1W3557 · 9Y6546 ITEM 22
  23. O-RING NSN 5331-01-351-2727 P/N 2AT917 · 2AT917 · 9817-G · 9817
  24. O-RING NSN 5331-01-351-2726 P/N 2HG724 · 2HG724 · 9705-G · 9705

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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