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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 5331-00-414-2700 P/N MS9967-124 · MS9967-124 · MILR3533-124ES · MS9967-124 · +2 more
  2. O-RING NSN 5331-00-414-2672 P/N MS9386-133 · 5331PL0656970 · MS9386-133 · MS9386-133ES · +2 more
  3. O-RING NSN 5331-00-414-2669 P/N MS9386-123 · 5331PL1812059 · MS9386-123 · MS9386-123ES · +2 more
  4. O-RING NSN 5331-00-414-2665 P/N MS9386-122 · 5331PL0656958 · MS9386-122 · MS9386-122ES · +2 more
  5. O-RING NSN 5331-00-413-2473 P/N PRP121-7507 · 121-7507 · 10501945 · 121-7507 · +2 more
  6. O-RING NSN 5331-00-412-9023 P/N 20268FN36 · A6689.232.222/20269 · 20269 · 06689232222 · +2 more
  7. O-RING NSN 5331-00-412-1166 P/N 020-7507 · AS568B-020 · 23111-99-0338 · PRP020C0MP7507 · +2 more
  8. O-RING NSN 5331-00-412-1158 P/N 234-7507 · 671-00234 · 23111-99-0325 · 23111-99-0325 · +2 more
  9. O-RING NSN 5331-00-411-3710 P/N S9412-521 · S9412-521 · S9412-521 · S9412-521 · +2 more
  10. O-RING NSN 5331-00-411-2914 P/N 5011357 · 3014222 · 968.20.11.167 · 5011357 · +2 more
  11. O-RING NSN 5331-00-406-1073 P/N MIL-PRF-25732 · SAE-AS29513 · 29513-134 · 42091-01-40-002PC42 · +2 more
  12. O-RING NSN 5331-00-406-0983 P/N V2-120 · 120-78-00-00 · 2-012 E540-80 · HJE03116 · +2 more
  13. O-RING NSN 5331-00-405-8956 P/N AS568-013 · 5331PL1279441 · 280694PC62 · 4400171-0130 · +2 more
  14. O-RING NSN 5331-00-405-5585 P/N CE213244 · 5-102 N525-60 · N0105 5-102 · 5-102N105-6 · +2 more
  15. O-RING NSN 5331-00-405-2851 P/N 579944 · 579944 · 579944 · MS9967-030 · +2 more
  16. O-RING NSN 5331-00-405-0797 P/N 253-737-70 · 2533405-253 · 5331PL1280048 · 5331PL0891459 · +2 more
  17. O-RING NSN 5331-00-401-4906 P/N S9412-114 · MIL-DTL-25988/2 · M25988/2-114 · MIL-R-25988 · +2 more
  18. O-RING NSN 5331-00-401-4804 P/N S9412-018 · S9412-018 · MIL-R-25988 · M25988/2-018 · +2 more
  19. O-RING NSN 5331-00-400-5451 P/N MS9386-005 · MS9386-005 · 9513-005-4 · 513-005-4 · +2 more
  20. O-RING NSN 5331-00-399-8039 P/N 16487-10 · 25637 · 2-217 N552-90 · 11087 · +2 more
  21. O-RING NSN 5331-00-397-5714 P/N 3689PC13 · 3693-11 · AS568-111AMS3656 · 3693-11 · +2 more
  22. O-RING NSN 5331-00-390-7879 P/N S8057G19 · AC14368 · AC14368 · S8057G19 · +2 more
  23. O-RING NSN 5331-00-382-8128 P/N ST1000-011 · ST1000-011 · ST1000-011 · MILR2765-011ES · +2 more
  24. O-RING NSN 5331-00-373-3415 P/N M83461/1-153 · 0568-153 · AS568-153 · MILR2765-153ES · +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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