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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 5331-01-106-0939 P/N 7377-464 · P48026-464 · 4067-70-464 · MS28775-464 · +7 more
  2. O-RING NSN 5331-01-105-8886 P/N PRP256-7377 · 256-7377 · PRP256-7117 · 256-737-70 · +7 more
  3. O-RING NSN 5331-01-097-2778 P/N 3423-3001-1 ITE · 58-908-30 · 3334846PC5 · SF10914 REV B PC31 · +7 more
  4. O-RING NSN 5331-01-096-9535 P/N 287-6008P012 · 16606A54-7 · MIL-DTL-25988/3 · M25988/3-012 · +7 more
  5. O-RING NSN 5331-01-092-6962 P/N 1355-103 · 03015-29 · 03040-284 · 36610-106 · +7 more
  6. O-RING NSN 5331-01-092-5502 P/N 012-7399 · PRP012-739-90 · 012-7799 · 2HE922 · +7 more
  7. O-RING NSN 5331-01-026-3795 P/N AS568-904MILR25897TY1CL1 · 5331PL0845031 · 5331PL1835317 · M83248/1-904 · +7 more
  8. O-RING NSN 5331-01-014-4290 P/N 20112 · EN6075-008 · NAS1611-008 · NAS1613 · +7 more
  9. O-RING NSN 5331-01-013-3017 P/N AS568-029 · 4029-53 · P40-433PC7 · 4029-73 · +7 more
  10. O-RING NSN 5331-01-010-2428 P/N 1222180322-42 · 101A909U01 · 211021 · AS568-021NBR · +7 more
  11. O-RING NSN 5331-01-010-2421 P/N 102A10006-03 · GS570J2J137 · 100111AM125 · MIL-DTL-25988/1 · +7 more
  12. O-RING NSN 5331-01-008-6808 P/N 63B0267-448 · 563-7067896-44 · AS3209-448 · MIL-R-83248/1 · +7 more
  13. O-RING NSN 5331-01-008-3145 P/N S8990-591 · S8990-591 · S8990-591 · S8990-591 · +7 more
  14. O-RING NSN 5331-01-007-1599 P/N 69483P103-1799 · 16606A79-121 · 2A13-133 · M25988/1-133 · +7 more
  15. O-RING NSN 5331-01-006-2121 P/N M83248/1-368 · AS3209-368 · AMS 7276 · MIL-R-83248/1 · +7 more
  16. O-RING NSN 5331-01-006-2110 P/N 741239 ITEM 16 · 862628 REV 4 · AS3209-467 · MIL-R-83248C TYPE 1 CLASS 1 · +7 more
  17. O-RING NSN 5331-01-006-0330 P/N AS3209-374 · MIL-R-83248/1 · M83248/1-374 · MIL-R-83248C TYPE 1 CLASS 1 · +7 more
  18. O-RING NSN 5331-01-006-0327 P/N 593-6960891PC6 · AS3209-373 · MIL-R-83248/1 · M83248/1-373 · +7 more
  19. O-RING NSN 5331-01-006-0325 P/N AMS7276 · AS3209-367 · M83248/1-367 · AS568-367MILP55 16 · +7 more
  20. O-RING NSN 5331-01-006-0319 P/N AMS 7276 · AS3209-460 · MIL-R-83248C TYPE 1 CLASS 1 · M83248/1-460 · +7 more
  21. O-RING NSN 5331-01-006-0317 P/N AS3209-362 · M83248/1-362 · MIL-R-83248/1 · MIL-R-83248C TY 1 CL 1 · +7 more
  22. O-RING NSN 5331-01-006-0316 P/N AS3209-360 · M83248/1-360 · MIL-R-83248/1 · MIL-R-83248C TYPE 1 CLASS 1 · +7 more
  23. O-RING NSN 5331-01-006-0314 P/N AS3209-357 · MIL-R-83248/1 · MIL-R-83248C TY 1 CL 1 · M83248/1-357 · +7 more
  24. O-RING NSN 5331-01-006-0313 P/N SDD 18277 ITEM · AS3209-356 · MIL-R-83248C TY 1 CL 1 · M83248/1-356 · +7 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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