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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 5331-01-024-9772 P/N 4137-53 · P42-433PC7 · ARP568-137C557- 7 · 2-137C873-70 · +1 more
  2. O-RING NSN 5331-01-024-8425 P/N 162A8089P24 · 012536-002 · 162A8089P24 · 012536-002 · +1 more
  3. O-RING NSN 5331-01-024-7092 P/N 54-66-2038 · AS568-038ZZR765CL2BGR70 · ARP568-038MILR5 847CL2 · AS568-038MILR58 47CL2 · +1 more
  4. O-RING NSN 5331-01-024-4856 P/N 2100-27 · ARP568-148 · AS568-148S383-70 · ARP568-148S383- · +1 more
  5. O-RING NSN 5331-01-023-9126 P/N AS568-111V709-90 · 5009-32 · AS568-111 V709- 90 · 2-111V709-90 · +1 more
  6. O-RING NSN 5331-01-022-9022 P/N 182620 · 1354-065 · 9987-993 PIECE 44 · 182620 · +1 more
  7. O-RING NSN 5331-01-022-8131 P/N 6871091-16 · MS9966-16 · MS9966-16 · MS9966-16 · +1 more
  8. O-RING NSN 5331-01-021-4258 P/N 20119 · PRP568-234-805-70 · NAS1611-234 · NAS1613 · +1 more
  9. O-RING NSN 5331-01-020-5267 P/N AS568-119 · AMS 7273C · AS568-119 · AMS 7273C · +1 more
  10. O-RING NSN 5331-01-020-5264 P/N AS568-159 · AMS7273C · AMS7273C · AS568-159 · +1 more
  11. O-RING NSN 5331-01-020-4419 P/N 125-7507 · V03854 · V03854 · 125-7507 · +1 more
  12. O-RING NSN 5331-01-020-3914 P/N 028-8307 · 028-7507 · 10501751 · PRP028-7507 · +1 more
  13. O-RING NSN 5331-01-019-3775 P/N MIL-P-25732 · AS568-924MILP5516CLASSB · AS568-924 · ARP568-924MILP5 516 · +1 more
  14. O-RING NSN 5331-01-019-3773 P/N 5P-7817 · AS568-932MILG23652TYPE2 · 5P-7817 · AS568-932MILG23652TYPE2 · +1 more
  15. O-RING NSN 5331-01-019-2600 P/N MS28775-378 · MS28775-378 · MS28775-378 · SAE-AS28775 · +1 more
  16. O-RING NSN 5331-01-018-7143 P/N 0634303609 · 0634303609 · 0634303609 · 10024097 · +1 more
  17. O-RING NSN 5331-01-017-0700 P/N 07-FC-018-P · 401254 · 2-227N602-70 · P0010170700 · +1 more
  18. O-RING NSN 5331-01-016-8944 P/N 91098 · N141004730 · 2-031 E540-80 · 2-031E540-80 · +1 more
  19. O-RING NSN 5331-01-016-8942 P/N ASTM D2000 M3DA810A26B36EA14 · 2-029 E540-80 · 2-029E540-8 · E0540-802-029 · +1 more
  20. O-RING NSN 5331-01-016-7888 P/N 080-04273-060 · 080-04273-60 · 080-58532-060 · 080-04273-060 · +1 more
  21. O-RING NSN 5331-01-016-5560 P/N 182570 · 2-114L308-8 · 2-114L1007-80 · 2-114L308-80 · +1 more
  22. O-RING NSN 5331-01-015-1028 P/N MS9967-217 · MS9967-217 · AS9967-217 · MS9967-217 · +1 more
  23. O-RING NSN 5331-01-013-3033 P/N 6227-15C557-7 · 5015-53 · P38-433PIECE67 · 2-433C873-70 · +1 more
  24. O-RING NSN 5331-01-012-2722 P/N 71040 · 71040 · 71160 · Z053071160 · +1 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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