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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 5331-00-618-0490 P/N 934611 · DS-934611 · AS568-214 · 5331PL0899170 · +4 more
  2. O-RING NSN 5331-00-618-0488 P/N S8057K207 · MS29561-143 · 29561-143 · MS29561-143 · +4 more
  3. O-RING NSN 5331-00-604-1601 P/N 101192PC1 · 2-116 · 2-116 E515-80 · 101192-1 · +4 more
  4. O-RING NSN 5331-00-599-6619 P/N 5247911 · 5192248 · 5151151 · 5151151 · +4 more
  5. O-RING NSN 5331-00-599-2127 P/N 4G0SK13E · RE49F197FSYMB0L3 · MS90064-5 · MS90064-5 · +4 more
  6. O-RING NSN 5331-00-599-0750 P/N 896205-83 · 887824-18 · 2Z8273-12 · N1204A1 · +4 more
  7. O-RING NSN 5331-00-585-9474 P/N PRP568-277-4024-65 · AS3578-277 · MS9021-277 · 13207E6761FN95 · +4 more
  8. O-RING NSN 5331-00-585-7864 P/N PRP568-154-4024-25 · AS3578-154 · MS9021-154 · 2-154 N506-65 · +4 more
  9. O-RING NSN 5331-00-585-1069 P/N 90B80 · MS29561-244 · MS29561-244 · MS29561-244 · +4 more
  10. O-RING NSN 5331-00-584-1582 P/N 182392 · PRP568-130-4024-65 · AS3578-130 · MS9021-130 · +4 more
  11. O-RING NSN 5331-00-584-1224 P/N 182491 · 69890-144 · PRP568-127-4024-65 · AS3578-127 · +4 more
  12. O-RING NSN 5331-00-582-7040 P/N 10036-5 · 10036-5 · 802-099-6 · 802-099-6 · +4 more
  13. O-RING NSN 5331-00-582-2578 P/N PRP568-16-4024-65 · 220298 · AS3578-916 · 5331PL0962220 · +4 more
  14. O-RING NSN 5331-00-582-2523 P/N MIL-DTL-22050GRADE1SIZEAS569-012 · 670-50012 · PP056SB1-012 · 2-012E688-70 · +4 more
  15. O-RING NSN 5331-00-580-9869 P/N 362239 · 362239 · 362239 · 362239 · +4 more
  16. O-RING NSN 5331-00-580-1216 P/N IPD2H3931 · ASTM-D2000M3CH810 A25EO16Z1Z · AS568-236 · 902116709 · +4 more
  17. O-RING NSN 5331-00-559-8786 P/N 23KP366 · 7F-8268 · 7F-8268 · 7F-8268 · +4 more
  18. O-RING NSN 5331-00-559-6517 P/N M25988/1-129 · 378157 · MILR25988-1 · MIL-DTL-25988/1 · +4 more
  19. O-RING NSN 5331-00-558-1105 P/N AS3578-036 · PRP568-036-4024-65 · AS3578-036 · MS9021-036 · +4 more
  20. O-RING NSN 5331-00-551-1216 P/N 914-18 · 287M0003P022 · 287M0003P022 · 5331PL1279429 · +4 more
  21. O-RING NSN 5331-00-550-7315 P/N 1909531 · 1909531 · 1909531 · KC8151 · +4 more
  22. O-RING NSN 5331-00-545-7240 P/N 1045Z425 · 11487200 · A115 · 114872 · +4 more
  23. O-RING NSN 5331-00-542-1717 P/N 779B13ITEM9 · 779REVAPC27 · 100A12-2 · 100A12PC2 · +4 more
  24. O-RING NSN 5331-00-542-1599 P/N 2-137 · 598-700-1894227REVAITEM4 · 42341-137 · ARP568-137MILR2 5897TY1CL1 · +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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