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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 5331-00-914-8403 P/N AS568-212ZZR765CL2BGR50 · ARP568-212MILR5 847CL11B · 2-212 S899-50 · 2-212S899-50 · +3 more
  2. O-RING NSN 5331-00-914-5846 P/N IPD4J524 · 23KP322 · 4J0524 · 10324710 · +3 more
  3. O-RING NSN 5331-00-914-1116 P/N 19134-11 · 19134-11CP · 2-335 · 21-19588PC8 · +3 more
  4. O-RING NSN 5331-00-914-1031 P/N 34665-157 · 34665-151 · 11171-23 · 34665-157 · +3 more
  5. O-RING NSN 5331-00-912-2643 P/N S8057AT7 · S8057AT7 · S8057AT7 · AMS3302 · +3 more
  6. O-RING NSN 5331-00-911-3804 P/N S8057AY118 · S8057AY118 · S8057K118 · S8057AY118 · +3 more
  7. O-RING NSN 5331-00-907-5169 P/N 121-718-80 · 2-121N380-8 · J200AC121 · J200AV121 · +3 more
  8. O-RING NSN 5331-00-907-0026 P/N 5-144S418-6 · 5-144S613-6 · 5-144 S613-60 · 5-144S613-6 · +3 more
  9. O-RING NSN 5331-00-901-8222 P/N 75G1R6013 · 3-355-8-00-901-04 · 3-355-8-00-901-04 · 75G1R6013 · +3 more
  10. O-RING NSN 5331-00-900-3844 P/N AS3578-271 · 5331PL0811461 · MS9021-271 · 2-271N674-7 · +3 more
  11. O-RING NSN 5331-00-899-8498 P/N 574069R1 · 574069R1 · 574069R1 · 574069R1 · +3 more
  12. O-RING NSN 5331-00-899-5409 P/N S8990-114 · S8990-114 · S8990-114 · 114950-12 · +3 more
  13. O-RING NSN 5331-00-898-9623 P/N 133-17107A · 17107A133-17107A · B62101-133-954-70 · BACP11P133 · +3 more
  14. O-RING NSN 5331-00-893-7341 P/N 2-16S613-6 · 2-016 S613-60 · 2-016S613-6 · 2-16 · +3 more
  15. O-RING NSN 5331-00-892-4100 P/N PRP568-448-4024-65 · AS3578-448 · MS9021-448 · 2-448 N506-65 · +3 more
  16. O-RING NSN 5331-00-892-1917 P/N 106A2989PC2 · AS568-221 · AS568B-221 · MILG21610TYPEI · +3 more
  17. O-RING NSN 5331-00-891-5570 P/N 11-012B · 2-12B318-7 · AS568-012AMS3238 · 261-0215-004 · +3 more
  18. O-RING NSN 5331-00-891-4371 P/N 20A11CM450C · X1514T450C · X1514T450C · 20A11CM450C · +3 more
  19. O-RING NSN 5331-00-891-1759 P/N AS3582-110 · MS9068-110 · MS9068-110ES · 2-110 S604-70 · +3 more
  20. O-RING NSN 5331-00-889-8833 P/N 425005-10 · 7M80-10 · B56106-10 · 120369-10 · +3 more
  21. O-RING NSN 5331-00-883-6572 P/N 6735231-142 · 6735231-142 · AS3551-142 · MS9241-142 · +3 more
  22. O-RING NSN 5331-00-883-2982 P/N AS3578-044 · MS9021-044 · 2-044 N506-65 · 5330008832982 · +3 more
  23. O-RING NSN 5331-00-882-9176 P/N 5331PL0845022 · 5331PL2053548 · MS9388-016 · MS9388-016 · +3 more
  24. O-RING NSN 5331-00-882-9117 P/N 6843333-020 · 385952 · MS17413-020 · MS9388-020 · +3 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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