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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 5331-00-724-4286 P/N 914-4-8186 · 287-1159P13 · 457-60-16 · MS29513-16 · +5 more
  2. O-RING NSN 5331-00-720-2163 P/N PRP568-123-4024-65 · AS3578-123 · MS9021-123 · MS9021-123ES · +5 more
  3. O-RING NSN 5331-00-702-7217 P/N 100111AM100 · MIL-R-25988/1A · MILR25988 · MIL-DTL-25988/1 · +5 more
  4. O-RING NSN 5331-00-690-9741 P/N PRP568-259-4024-65 · AS3578-259 · 5331PL1325840 · MS9021-259 · +5 more
  5. O-RING NSN 5331-00-689-6489 P/N AS568A-111 · 548V303 · 2-111E515-8 · 500500-3 · +5 more
  6. O-RING NSN 5331-00-689-6472 P/N NAS1601 · NAS1601-036CP · NAS1601-036 · 2-36-E515-8 · +5 more
  7. O-RING NSN 5331-00-686-2352 P/N 299C413P6 · ABS7270 · SD568-906 · AMS7270K · +5 more
  8. O-RING NSN 5331-00-684-2067 P/N 012-7188 · 902-7-7188 · 012-2337 · J200AC12 · +5 more
  9. O-RING NSN 5331-00-684-2066 P/N 006-7188 · 902-1-7188 · 215294PC17 · J200AC6 · +5 more
  10. O-RING NSN 5331-00-663-5709 P/N 5F-3106 · 154106 · 5F3106 · 5F3106 · +5 more
  11. O-RING NSN 5331-00-641-8339 P/N 1820-39 · MILP5516 · AN6227-39 · AN6227B39 · +5 more
  12. O-RING NSN 5331-00-631-1345 P/N N90-84382 · PRP568-455-4067-70 · MS28775-455 · MILP25732 · +5 more
  13. O-RING NSN 5331-00-618-5362 P/N PRP568-019-4024-65 · AS3578-019 · MS9021-019 · K41RB72019 · +5 more
  14. O-RING NSN 5331-00-618-2515 P/N S8171K3 · S8171K3 · MS29561-225 · MS29561-225 · +5 more
  15. O-RING NSN 5331-00-618-1665 P/N MS29561-130 · 5331PL0979242 · MS29561-130 · STD3019C130 · +5 more
  16. O-RING NSN 5331-00-618-1664 P/N 410-12310 · AS568A-037 · AMS-R-7362 · AS568-037 · +5 more
  17. O-RING NSN 5331-00-618-1657 P/N MS29561-141 · 5331PL1279552 · MS29561-141 · MS29561-141 · +5 more
  18. O-RING NSN 5331-00-618-0227 P/N GS570J2G224 · AS3582-224 · MS9068-224 · 44,05X3,53-7SL534 · +5 more
  19. O-RING NSN 5331-00-599-6406 P/N AS3582-225 · MS9068-225 · AS568-225ZZ-R-7 65B CL 2B GR 70 · AS568-225AMS330 4 · +5 more
  20. O-RING NSN 5331-00-599-2938 P/N 8F9206 · 869206 · IPD8F9206 · AS568-112 · +5 more
  21. O-RING NSN 5331-00-599-2752 P/N 669B244PT11 · 669B244P11 · 914-11 · MS29513-23 · +5 more
  22. O-RING NSN 5331-00-599-2551 P/N 5126622 · PRP902-16 · D358 · C70-0016 · +5 more
  23. O-RING NSN 5331-00-599-2023 P/N 261008R1 · 259771R1 · 261008R1 · 259771R1 · +5 more
  24. O-RING NSN 5331-00-599-0888 P/N 6-1-1953-36-23A · 6-1-1953-36-23A · AN6227-71 · 11-444 · +5 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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