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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 5331-00-833-3162 P/N AS3578-043 · PRP568-043-4024-65 · MS9021-043 · 2-043 N506-65 · +4 more
  2. O-RING NSN 5331-00-827-6915 P/N MS29513-239 · MILP5315 · MS29513-239 · MS29513-239CP · +4 more
  3. O-RING NSN 5331-00-827-0248 P/N PRP568-236-4024-65 · AS3578-236 · MS9021-236 · 2-236 N506-65 · +4 more
  4. O-RING NSN 5331-00-826-9923 P/N MS29561-125 · MS29561-125 · MS29561-125 · MS29561-125 · +4 more
  5. O-RING NSN 5331-00-826-7166 P/N 45-0-15 · 11-015 · 45-0-15 · 5-135 N109-70 · +4 more
  6. O-RING NSN 5331-00-815-3509 P/N MS29561-020 · MS29561-020 · MS29561-020 · MS29561-020 · +4 more
  7. O-RING NSN 5331-00-814-8636 P/N 910-2347 · PRP910-2347 · PRP568-910-3110-70 · B-10SR533-70 · +4 more
  8. O-RING NSN 5331-00-814-8618 P/N PRP916-2347 · 916-2347 · PRP568-916-3110-70 · B-16SR533-70 · +4 more
  9. O-RING NSN 5331-00-814-0660 P/N 012-1217 · 012-149-70 · 22-525-5-HT · GV-22-525-5-HT · +4 more
  10. O-RING NSN 5331-00-813-5437 P/N 114-11306 · 568-114-1235-60 · 1JA3368H34 · 2-114-S418-6 · +4 more
  11. O-RING NSN 5331-00-812-9586 P/N 906-12-9077 · 593-513-1862835REVDPC18 · 593-513-1862821AEPC30 · 593-513-1862821AEPC5 · +4 more
  12. O-RING NSN 5331-00-808-2344 P/N 1877650PC13 · 186915 · 90494PC13 · 593-522-1862404PC64 · +4 more
  13. O-RING NSN 5331-00-806-2607 P/N PRP1487-216 · 8528072 · 8528072 · L8528072 · +4 more
  14. O-RING NSN 5331-00-803-8120 P/N 497250-317 · MS29561-233 · MS29561-233 · 2-233 N4771-70 · +4 more
  15. O-RING NSN 5331-00-802-3367 P/N 015-737-70 · 914-3 · G17P13033 · 6-56829-0001 · +4 more
  16. O-RING NSN 5331-00-801-1611 P/N 225-17107 · 225-19357 · NAS1593-225 · 9768-201X2PC19 · +4 more
  17. O-RING NSN 5331-00-796-4586 P/N PRP568-225 · 568-225 · PRP-568-225 · ASTM D2000 · +4 more
  18. O-RING NSN 5331-00-788-3872 P/N MS29561-110 · 5331PL0143901 · C723-99-0004 · C9-723-36-0004 · +4 more
  19. O-RING NSN 5331-00-777-8242 P/N 2-234 · 597-516-1887717REVAPC4 · N141008810 · V0747 2-234 · +4 more
  20. O-RING NSN 5331-00-776-7747 P/N 6762083 · 6762083 · 6762083 · 7767747 · +4 more
  21. O-RING NSN 5331-01-721-8482 P/N H547-0001-262160701-77-2 · 7383858-262160701-77-2 · 2621-607-01-77-2 · H547-0001-262160701-77-2CP · +4 more
  22. O-RING NSN 5331-01-721-8413 P/N 7383858-262160701-77-1 · 2621-607-01-77-1 · H547-0001-262160701-77-1 · AS3581-247 OXYGEN CLEANCP · +4 more
  23. O-RING NSN 5331-01-721-8406 P/N 2621-607-01-74-2 · 7383858-262160701-74-2 · H547-0001-262160701-74-2 · H547-0001-262160701-74-2CP · +4 more
  24. O-RING NSN 5331-01-719-0215 P/N 8635040-08 · 8635040 · 8635040-8 · 8635040-08 · +4 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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