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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 5331-00-931-6756 P/N SP202D903 · MS28778-3 · AS568A-903 · 5330PL0565307 · +5 more
  2. O-RING NSN 5331-00-929-5219 P/N NAS1611-113 · NAS1613 · BACP11F1 · 4363922-11 · +5 more
  3. O-RING NSN 5331-00-928-1823 P/N 7339987-3 · D2000 M3CH714A25B34E016E · AS568-335 · D200-01-M3CH714A25B34E016E · +5 more
  4. O-RING NSN 5331-00-926-9314 P/N 227-11505 · PRP227-11505 · AA55549-15 · A-A-55549 · +5 more
  5. O-RING NSN 5331-00-923-1101 P/N AS568-229 · 2-229 N552-90 · 25563 · 11090 · +5 more
  6. O-RING NSN 5331-00-922-5963 P/N AS3209-028 · 5331PL1147580 · AS3209-028 · AS3209-028 · +5 more
  7. O-RING NSN 5331-00-913-8842 P/N R1312P146 · D11400FF ITEM 12 · D11400FF ITEM 12 · AS3581-146 · +5 more
  8. O-RING NSN 5331-00-910-7379 P/N 908-11207 · B63114-8 · 8439-70-17-8 · C006-8 · +5 more
  9. O-RING NSN 5331-00-910-6629 P/N AS3551-110 · AS3551-110 · S8057K8 · S8057K8 · +5 more
  10. O-RING NSN 5331-00-900-4432 P/N 018-19357 · 26316026-08 · 26316026-08 · 2-18 · +5 more
  11. O-RING NSN 5331-00-899-5137 P/N 2043 · 20A11TM012 · 5331PL1279888 · AS113-17-012 · +5 more
  12. O-RING NSN 5331-00-892-1944 P/N E26141N-2 PIECE 8 · D25656N4 PIECE 8 · E-26141N3PC8M0D · D25656N2PC4 · +5 more
  13. O-RING NSN 5331-00-891-8851 P/N 3-4N219-7 · AS568-904 · D2000M2BF714B34EO14EO34 · 3-904-N674-70DS · +5 more
  14. O-RING NSN 5331-00-885-7230 P/N 5427-11 · AP24562 · N24849-11 · 120R0V11CLASS2 · +5 more
  15. O-RING NSN 5331-00-882-1680 P/N 6843332-04 · 6843332-04 · 379643 · 5330PL2126071 · +5 more
  16. O-RING NSN 5331-00-881-9973 P/N 7M80-8 · 7M80-8 · 425005-8 · 7M80-8 · +5 more
  17. O-RING NSN 5331-00-879-6649 P/N RS26110-02629 · NV822202 FIND 7 · NAS1613 · NAS1611-026 · +5 more
  18. O-RING NSN 5331-00-878-0399 P/N N-832 PIECE 25A · 025-01005 · 0X025-01005 · N832SH1PC25A · +5 more
  19. O-RING NSN 5331-00-869-3638 P/N 1801490 ITEM NO. 405 · 637477 · 00655177363 · 00655177363 · +5 more
  20. O-RING NSN 5331-00-869-0627 P/N AS3582-149 · AS3582-149 · AS9068-149 · 2-149S613-6 · +5 more
  21. O-RING NSN 5331-00-864-7215 P/N 235-19351 · PRP235-19351 · 388071 · 120R1 CLASS 1 SIZE 235 AMS 7278 · +5 more
  22. O-RING NSN 5331-00-857-4423 P/N S8990-010 · S8990-010 · S8990-010 · S8990-10 · +5 more
  23. O-RING NSN 5331-00-855-0534 P/N 102-778-0059 · 100347-9000-055 · 6375192-1 · G80P16632-4 · +5 more
  24. O-RING NSN 5331-00-851-1826 P/N PRP909-7142-70 · 362880 · AS3551-229 · AS113-06-229 · +5 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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