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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 5331-00-166-1026 P/N J221P027 · 908779C1 · 649-393-027-0 · 4680-027 · +40 more
  2. O-RING NSN 5331-00-165-1971 P/N PRP3-902-19357 · 902-19357 · 69494M902 · NAS1595-2 · +40 more
  3. O-RING NSN 5331-00-054-6894 P/N 7338663 · 546894 · 4274P11 · 625A823AEP1 · +40 more
  4. O-RING NSN 5331-00-559-6184 P/N MS28775-326 · 7377-326 · 2CD821 · MS28775-326 · +39 more
  5. O-RING NSN 5331-00-322-6397 P/N 6562 REV C ITEM 13 · M83248/1-125 · SFS-GN-30-11 · D-42221PC4 · +39 more
  6. O-RING NSN 5331-00-250-0239 P/N R1307-25 · 7866-25 · R1307P025 · 7866-025 · +39 more
  7. O-RING NSN 5331-00-248-3840 P/N PRP-568-014 · 60-P-31-014 · TX90925-8 · PX-1775-014 · +39 more
  8. O-RING NSN 5331-00-196-5358 P/N 6725873 · 250S85 · 80X18 · 72199REVAPC4 · +39 more
  9. O-RING NSN 5331-00-167-5122 P/N 1697883 REV A PART NO 89F · 098374 · 1628831 REV A PART NO 89F · NF67-250-9 · +39 more
  10. O-RING NSN 5331-00-166-8411 P/N 001181.851.000 · 001161.651.000 · 607948.001 SEQ 275 · 12267816-6 · +39 more
  11. O-RING NSN 5331-00-166-8406 P/N AS568A-219 · 219-19357 · PRP219-19357 · 903509C1 · +39 more
  12. O-RING NSN 5331-00-166-1081 P/N AS3581-011 · M93248/2-011 · 085241 · 5076 ITEM NO 4 · +39 more
  13. O-RING NSN 5331-00-166-1036 P/N AS3209-029 · 92527-29 · 4680-029 · 122-1096415 PIECE 50 · +39 more
  14. O-RING NSN 5331-00-165-1972 P/N PRP3-903-19357 · 903-19357 · 6493939030 · J221P903 · +39 more
  15. O-RING NSN 5331-00-165-1954 P/N ST1050-236 · AS3209-236 · 710893-22 · 803-6983468-PC1 · +39 more
  16. O-RING NSN 5331-01-119-2008 P/N 3423-0001 ITEM · PL-1405 ITEM 12 · PL-1408 ITEM 14 · D4000020239-F43 · +38 more
  17. O-RING NSN 5331-00-752-7534 P/N 7377-119 · 274249 · 274249 · MS28775-119 · +38 more
  18. O-RING NSN 5331-00-406-0883 P/N 274485PC24 · NB39821072 · D95000-210 · 6227-15 · +38 more
  19. O-RING NSN 5331-00-291-3274 P/N 11612016 · A31170016 ITEM 29 · 7866-230 · PRP230-7866 · +38 more
  20. O-RING NSN 5331-00-248-3850 P/N 902-14-7399 · 7866-116 · GS570EM116 · 116-7399 · +38 more
  21. O-RING NSN 5331-00-198-6179 P/N PRP902-22 · 3253398 · 82-20217-01 · 5201PC8A5206 · +38 more
  22. O-RING NSN 5331-00-167-5123 P/N M82348/1-136 · AS3209-136 · 1338296 · 2601755-14 · +38 more
  23. O-RING NSN 5331-00-167-5113 P/N M83248/1-124 · S9026L124 · 6843333-124 · S9026L124 · +38 more
  24. O-RING NSN 5331-00-166-8400 P/N PRP155-19357 · 155-19357 · DD-4686 REF NO 16 · 649-393-155-0 · +38 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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