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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 5331-00-275-3391 P/N MS9967-017 · 5331PL2165357 · MS9967-017 · SAE-AS9967 · +2 more
  2. O-RING NSN 5331-00-275-3341 P/N MS9386-224 · 5331PL1720711 · 5331PL0655003 · MS9386-224 · +2 more
  3. O-RING NSN 5331-00-274-7273 P/N AS3582-242 · MS9068-242 · 2-242-S604-70 · 2-242S604-70 · +2 more
  4. O-RING NSN 5331-00-269-0782 P/N AS3581-005 · M83248/2-005 · 4400596-0050 · 2-005V587-9 · +2 more
  5. O-RING NSN 5331-00-263-9839 P/N G77325 · G77325 · AS568-211/MIL-G-21610 · G77325 · +2 more
  6. O-RING NSN 5331-00-263-8037 P/N MS29512-28 · MS29512-28 · MS29512-28 · 10195512 · +2 more
  7. O-RING NSN 5331-00-258-7472 P/N 21TD40 · A2916DK · 21TD40 · 5330002587472 · +2 more
  8. O-RING NSN 5331-00-253-5342 P/N MIL-DTL-25988 · M25988/2-120 · MIL-DTL-25988/2 · 5331PL0929766 · +2 more
  9. O-RING NSN 5331-00-253-2376 P/N 2518756-3 · S9515-AL-MMA-010,7-41 ITEM 3 · CP031A124D3 · 2-124E515-80 · +2 more
  10. O-RING NSN 5331-00-253-2374 P/N 2518756-7 · 003223ED · NV822201 FIND 178 · E0515 2-223 · +2 more
  11. O-RING NSN 5331-00-251-4402 P/N A2916BV · 5331002514402 · F6632000106 · A2916BV · +2 more
  12. O-RING NSN 5331-00-250-9915 P/N 313446 · 313446 · 313446 · 10010144 · +2 more
  13. O-RING NSN 5331-00-250-9634 P/N 32Z9004201-6200 · 9004201-8700 · 9004201-8700 · 237-6014 · +2 more
  14. O-RING NSN 5331-00-247-5649 P/N 185N570-5 · 564-2200-936113ALT3PCU3 · 2962-14ALT3PCU3 · PD5330-212-19 · +2 more
  15. O-RING NSN 5331-00-245-2353 P/N NAS1594-015 · 4400591-0150 · 4400591-0150CP · M83248/1-015CP · +2 more
  16. O-RING NSN 5331-00-242-6630 P/N AS3569-116 · AN123969 · 2-116N179-70 · N0179 2-116 · +2 more
  17. O-RING NSN 5331-00-240-4413 P/N S8990-597 · S8990-597 · S8990-597 · S8990-597 · +2 more
  18. O-RING NSN 5331-00-237-6967 P/N 16360-304 · 25422 ITEM NO 9 · AS586B-904 · 16360-304 · +2 more
  19. O-RING NSN 5331-00-235-4952 P/N 011-7507 · 10443DA · S4-ML305-B ITEM 19 · 23111-99-0342 · +2 more
  20. O-RING NSN 5331-00-231-3235 P/N 5566 · 5331PL1205870 · PD5330-212-16 · 2-276 N1000-70 · +2 more
  21. O-RING NSN 5331-00-231-1696 P/N PRP568-172-4024-25 · AS3578-172 · MS9021-172 · 2-172 N506-65 · +2 more
  22. O-RING NSN 5331-00-230-7246 P/N 11205 · 663700-124 · 1211-50 · S558-5 · +2 more
  23. O-RING NSN 5331-00-225-6615 P/N 481600 · 481600 · 481600 · 481600 · +2 more
  24. O-RING NSN 5331-00-224-1014 P/N ASTM D2000-05 · AS568-908 · 8900630P045 · 3-908N-525-6 · +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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