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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 5331-00-031-2915 P/N M25988/2-125 · MIL-R-25988/2 · MIL-DTL-25988/2 · M25988/2-125 · +3 more
  2. O-RING NSN 5331-00-018-7483 P/N B4330-2430-29 · RNG146 · 13211E8394-1 · 13211E8394-1 · +3 more
  3. O-RING NSN 5331-00-009-0533 P/N AS3582-345 · MS9068-345 · 2-345 S604-70 · 2-345S604-7 · +3 more
  4. O-RING NSN 5331-00-008-5857 P/N S8990-605 · S8990-605 · S8990 · S8990-605 · +3 more
  5. O-RING NSN 5331-00-007-0180 P/N AS3551-132 · AMS7272 · MS9241-132 · MS29561-132 · +3 more
  6. O-RING NSN 5331-00-006-8380 P/N G8356 ITEM 12 · 5145-045-A · A006 · 0682241AP · +3 more
  7. O-RING NSN 5331-00-006-8297 P/N 5331PL1333991 · A06689.237.142 · A06689.237.142 · SW104-6 · +3 more
  8. O-RING NSN 5331-00-005-8181 P/N 140295-5 · 715651-7 · 932121-1C · 5-103S604-1 · +3 more
  9. O-RING NSN 5331-00-005-1500 P/N 5331PL2178639 · J228P905 · J228P905 · 10159860 · +3 more
  10. O-RING NSN 5331-00-005-0603 P/N A-A-59588 CL 1B GR40 · AS568C-282 · AS568-282 · AS568B-282 · +3 more
  11. O-RING NSN 5331-00-003-9307 P/N 301289 · 69490B139 · AS3582-139 · MS9068-139 · +3 more
  12. O-RING NSN 5331-00-003-9161 P/N 7866-259 · 457-60-259 · MS29513-259 · 1793-259 · +3 more
  13. O-RING NSN 5331-00-001-8187 P/N G527-500-001 · ARP568-239MILP5510 · AS568B-239 · G527-500-001 · +3 more
  14. O-RING NSN 5331-01-734-3238 P/N 515-8842441-F110 · 515-8842441 · LOA024932-F110 · R6491604-F110 · +2 more
  15. O-RING NSN 5331-01-734-3237 P/N 515-8843163-F120 · 515-8843163 · 218122156 · R6491202-F120 · +2 more
  16. O-RING NSN 5331-01-734-3231 P/N 515-8837031-F121 · 515-8837031 · LOA038831-F121 · 218131798 · +2 more
  17. O-RING NSN 5331-01-732-9331 P/N 8833625 · 726-8839296-F116 · 1385861 · 218109437 · +2 more
  18. O-RING NSN 5331-01-732-8677 P/N 8836526 · 726-8836526-F109 · 1385861 · 218109435 · +2 more
  19. O-RING NSN 5331-01-732-8671 P/N 8833625 · 726-8833625-F114 · 138561 · LOA018312-F114 · +2 more
  20. O-RING NSN 5331-01-732-8664 P/N 8833625 · 726-8833625-F113 · 1385861 · R5231708-F113 · +2 more
  21. O-RING NSN 5331-01-375-9774 P/N AS3581-010 · 5330PL1812982 · 5330PL0578638 · MS9970-010 · +2 more
  22. O-RING NSN 5331-01-374-5196 P/N AMS-R-83285 · AS568-473 · AS568-473 · SAE-AMS-R-83285 · +2 more
  23. O-RING NSN 5331-01-373-6248 P/N 1649500-23 · 91710323 · 10-00-2085-1285 · 38R054P006 · +2 more
  24. O-RING NSN 5331-01-372-9004 P/N AS3578-157 · 5330PL1036705 · MS9021-157 · 10116954 · +2 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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