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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 5331-00-291-3080 P/N 661058B146 · 7866-146 · 60-P-31-146 · PX-1775-146 · +22 more
  2. O-RING NSN 5331-00-291-3068 P/N 7866-149 · 60-P-31-148 · 10V60-141-149 · PRP568-149-457-60 · +22 more
  3. O-RING NSN 5331-00-263-8036 P/N MS29512-24 · 7866-24 · 924-7866 · PRP924-7866 · +22 more
  4. O-RING NSN 5331-00-263-8015 P/N 61489 · 7866-273 · 60-P-31-273 · PX1775-273 · +22 more
  5. O-RING NSN 5331-00-250-0238 P/N N400A · 20A11CM216 · 124-5563779 PC 80 · RT253-65-216 · +22 more
  6. O-RING NSN 5331-00-250-0229 P/N 7866-213 · 145124 · 727019REVA · 90926-9 · +22 more
  7. O-RING NSN 5331-00-198-6198 P/N 546814 · 87-5388P1 · 87-5388P1 · BM5596A · +22 more
  8. O-RING NSN 5331-00-196-5349 P/N 250S63 · 250S63 · 575-4600-1443937REVAPC22 · 571-0103-1302000REVAPCAN6227-63 · +22 more
  9. O-RING NSN 5331-00-194-3719 P/N 7107076 · 7767822 · 395-4737 · PMAP037M · +22 more
  10. O-RING NSN 5331-00-173-3025 P/N PRP3-907-19357 · 907-16207 · 907-19357 · M83248/1-907 · +22 more
  11. O-RING NSN 5331-00-167-5128 P/N AS3209-147 · J221P147 · 395903 · 580531 · +22 more
  12. O-RING NSN 5331-00-167-5126 P/N LE121T SHT5, 820300-6 FN-9 · 500184-V · AMS3218B · AS3209-144 · +22 more
  13. O-RING NSN 5331-00-167-5118 P/N AS3209-130 · AS3209-130 · 649-393-130-0 · 166B-011H 1.00IN NO.19 · +22 more
  14. O-RING NSN 5331-00-166-8428 P/N 52125 FN 58 · ST1050-211 · AS3209-211 · AS3085-211 · +22 more
  15. O-RING NSN 5331-00-166-8398 P/N N-677 PIECE 20 · M83248/1-039 · M83248/1-039 · AMS7276 · +22 more
  16. O-RING NSN 5331-00-166-1086 P/N 690393-2 REV E ITEM 27 · AS3581-014 · BACP11PB6A · AS3581-014 · +22 more
  17. O-RING NSN 5331-00-166-1078 P/N 4564008EU · 6314783 FIND NO 20 · C-6339REV4 PL-1 · 4564008EU · +22 more
  18. O-RING NSN 5331-00-166-1046 P/N D11200FF ITEM 12 · 201113-09 · AS3209-042 · AMS7276 · +22 more
  19. O-RING NSN 5331-00-166-0959 P/N AS3209-004 · S9413-004 · S9413-004 · ST1050-004 · +22 more
  20. O-RING NSN 5331-00-103-1506 P/N AS3209-145 · 7261661 PC 15 · AS3209 · AS3209-145 · +22 more
  21. O-RING NSN 5331-01-007-4887 P/N 2-109-V747-75 · 30151 ITEM 16 · 30153 ITEM 16 · 26092 · +21 more
  22. O-RING NSN 5331-01-005-4057 P/N 845-7108907 ITEM 23 · 6640219 FIND 24 · 563-7067896-80 · 6406593-MTPD-A15 · +21 more
  23. O-RING NSN 5331-01-005-0522 P/N MIL-R-83248/1 · M83248/1-273 · 2-273 VIT0N · 999-1110-D-01-8 9A · +21 more
  24. O-RING NSN 5331-00-993-3792 P/N W8118577PC40 · AN6230-15 · W8118578PC40 · 182200-164 · +21 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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