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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 5331-00-166-8415 P/N U132-SAE8-SAE4-DPI-70C-MT ITEM 4 · GVU132SAE-223 · PRP909-1-142-70 · 346795 · +52 more
  2. O-RING NSN 5331-00-166-1062 P/N 6784798-113 · 10510792 · AS3085-113 · 21090 FIND 20 · +52 more
  3. O-RING NSN 5331-00-819-5111 P/N MS28778-24 · 45226-51 · PRP924-8307 · N-917PC2 · +51 more
  4. O-RING NSN 5331-00-580-6583 P/N 45Z91D218 · 1PS7 · 01-495-0049-4 PIECE 28 · 5793294 FIND 080 · +51 more
  5. O-RING NSN 5331-00-579-7911 P/N 215-7377 · 7377-215 · PRP215-7377 · D50128 ITEM 17 · +51 more
  6. O-RING NSN 5331-00-559-6182 P/N 7377-211 · 211-7377 · TR01-25.125-11 · MS28775-211 · +51 more
  7. O-RING NSN 5331-00-196-5339 P/N 1965339 · N1276 · SG2409-27E · S7-54 · +51 more
  8. O-RING NSN 5331-00-166-1001 P/N 001183.651.000 · 10000928 · 607948.001 SEQ 272 · 001183.851.000 · +51 more
  9. O-RING NSN 5331-00-250-0224 P/N PRP020-7866 · 020-7866 · 7866 · 7866-020 · +50 more
  10. O-RING NSN 5331-00-167-5110 P/N 121-19357 · PRP121-19357 · PRP121-16207 · 121-19457 · +50 more
  11. O-RING NSN 5331-00-166-1071 P/N M83248/1-117 · AS3209-117 · J221P117 · 3334846PC7 · +50 more
  12. O-RING NSN 5331-00-166-1011 P/N 57484000-Z · SFS-GN-30-2 · 022-17107 · 2601755-16 · +50 more
  13. O-RING NSN 5331-00-166-1010 P/N 021-16407 · B7173 ITEM 13 · 845-7016077-X-105 · M83248/1-021 · +50 more
  14. O-RING NSN 5331-00-166-0996 P/N 31025-2 · 6784798-19 · 91346-019 · 649-393-019-0 · +50 more
  15. O-RING NSN 5331-00-054-6940 P/N N90-84321 · 1000-011PC21 · DS947032CPIECE3 · 935601 · +50 more
  16. O-RING NSN 5331-00-585-8247 P/N 7377-232 · MS28775-232 · MS28775-232 · 817272 · +49 more
  17. O-RING NSN 5331-00-576-9733 P/N 7377-234 · 40-4V300 · 95-8924 · DRP-15990A PC 6 · +49 more
  18. O-RING NSN 5331-00-197-9599 P/N PRP257-7377 · 257-7377 · 15896 · 79971 · +49 more
  19. O-RING NSN 5331-00-166-1074 P/N PRP119-19457 · PRP119-19357 · 119-17107A · AS3209-119 · +49 more
  20. O-RING NSN 5331-00-067-3358 P/N 7412926 · 7363182 · 7352008 · 5662821 · +49 more
  21. O-RING NSN 5331-00-579-7918 P/N 7377-229 · G-3423 PC 28 · AN6230B7 · P48026-229 · +48 more
  22. O-RING NSN 5331-00-551-8441 P/N MS28775-019 · PRP019-7377 · 019-7377 · 7377-019 · +48 more
  23. O-RING NSN 5331-00-173-3023 P/N AS3209-227 · S8171AL5 · 3427RA PIECE 20 · 21090 FIND 22 · +48 more
  24. O-RING NSN 5331-00-165-1950 P/N 232-19357 · A49769-20MZZ · NF67-400-9 · NF67-400-5 · +48 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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