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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 5331-00-882-8049 P/N 6735231-19 · 6735231-19 · AS3551-019 · MS9241-019 · +4 more
  2. O-RING NSN 5331-00-882-7337 P/N AS568-026 · AMS7271H · AS568-026/AMS7271 · MILR15624-026ES · +4 more
  3. O-RING NSN 5331-00-881-2666 P/N AS568-252 · 2-252N674-70 · 283550-1902 · 2-252 N674-7 · +4 more
  4. O-RING NSN 5331-00-878-9459 P/N 2-11C356-4 · 2-11C0MP34-023 · 950353-1 · 2-11C0MP34-023 · +4 more
  5. O-RING NSN 5331-00-872-5144 P/N L-24075 PIECE 2 · AS568-906 MIL-G-21610TY1 · 323-1-023 · ARP568-906MIL-G -21610 · +4 more
  6. O-RING NSN 5331-00-869-5045 P/N NAS1613 · NAS1611-010 · 8D173 ITEM 12 · 5331PL1422692 · +4 more
  7. O-RING NSN 5331-00-869-3087 P/N 028-1118-000 · 120R1 CLASS 1 SIZE 020MIL-G-1149 · 2-020 C873-70 · 2-020C147-70 · +4 more
  8. O-RING NSN 5331-00-864-7272 P/N 6874530-017 · 368368 · 398393 · MS17413-017 · +4 more
  9. O-RING NSN 5331-00-855-3076 P/N PRP568-037-4024-65 · AS3578-037 · MS9021-037 · 2-037 N506-65 · +4 more
  10. O-RING NSN 5331-00-850-3743 P/N 6735231-16 · PRP914-4829-70 · 6735231-16 · AS3551-016 · +4 more
  11. O-RING NSN 5331-00-849-9927 P/N 583651 · 583651 · 583675 · 583651 · +4 more
  12. O-RING NSN 5331-00-846-0500 P/N 6735231-119 · 6735231-119 · AS3551-119 · 5331PL1013213 · +4 more
  13. O-RING NSN 5331-00-846-0499 P/N AS3551-114 · 5331PL0956359 · MS9241-114 · MS9241-114 · +4 more
  14. O-RING NSN 5331-00-845-9674 P/N PRP568-158-4024-25 · AS3578-158 · MS9021-158 · 2-158 N506-65 · +4 more
  15. O-RING NSN 5331-00-845-8843 P/N S8990-116 · S8990-116 · S8990-116 · S8990-116 · +4 more
  16. O-RING NSN 5331-00-845-7434 P/N PRP568-449-4067-70 · MS28775-449 · MS28775-449 · 2-449 N304-75 · +4 more
  17. O-RING NSN 5331-00-842-3203 P/N AS3551-130 · 6735231-130 · AS3551-130 · MS9241-130 · +4 more
  18. O-RING NSN 5331-00-841-9056 P/N 7710027 · 7710027 · 7710027 · 7710027 · +4 more
  19. O-RING NSN 5331-00-839-9969 P/N 3327468PC18 · 3327698 · 3327698 · 3327468PC18 · +4 more
  20. O-RING NSN 5331-00-837-7811 P/N 69890-148 · PRP568-135-4024-65 · AS3578-135 · MS9021-135 · +4 more
  21. O-RING NSN 5331-00-837-3114 P/N 3-8N108-6 · 3-908N108-6 · 3-908N108-60 · N108-6-3-8 · +4 more
  22. O-RING NSN 5331-00-835-8974 P/N FIGURE 7-10-16 · MS29561-119 · MS29561-119 · 2-119 N4771-70 · +4 more
  23. O-RING NSN 5331-00-835-7529 P/N PRP568-269-4024-65 · AS3578-269 · 239-001-0012 · MS9021-269 · +4 more
  24. O-RING NSN 5331-00-835-1686 P/N S8990-265 · S8990-265 · S8990-265 · S8990-265 · +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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