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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 5331-01-080-5758 P/N AS568B-048 · 100-048-8810 · 2-048S604-70 · AS568B-048 · +1 more
  2. O-RING NSN 5331-01-080-5008 P/N M25988/2-131 · MIL-R-25988/2 · S8057AP196 · S9412-131 · +1 more
  3. O-RING NSN 5331-01-080-3254 P/N 12267817 · 6882689 · 6882689 · 10056935 · +1 more
  4. O-RING NSN 5331-01-080-2230 P/N M25988/2-920 · MIL-DTL-25988/2 · MIL-R-25988/2 · M25988/1-920 · +1 more
  5. O-RING NSN 5331-01-079-7306 P/N MIL-DTL-25988/2 · M25988/2-031 · MIL-R-25988/2 · S9412-031 · +1 more
  6. O-RING NSN 5331-01-079-6579 P/N M25988/2-914 · MIL-DTL-25988/2 · MIL-R-25988/2 · S9412-564 · +1 more
  7. O-RING NSN 5331-01-079-5185 P/N MIL-DTL-25988/2 · M25988/2-026 · MIL-R-25988/2 · S9412-026 · +1 more
  8. O-RING NSN 5331-01-078-5127 P/N 5843333-252 · 6843333-252 · AS3085-252 · 5331PL0937929 · +1 more
  9. O-RING NSN 5331-01-078-5118 P/N AS568-122AMS3303 · 200136ACPC567 · 200136ACPC567 · 200136ACPC567 · +1 more
  10. O-RING NSN 5331-01-078-4499 P/N AS568-268AMS3303 · 200136ACPC374 · 200136ACPC374 · 200136ACPC374 · +1 more
  11. O-RING NSN 5331-01-077-7816 P/N 593625 · 593625 · 593625 · 593625 · +1 more
  12. O-RING NSN 5331-01-076-8138 P/N 2606136-012 · 2606136-012 · 10117151 · DB1824 · +1 more
  13. O-RING NSN 5331-01-076-6382 P/N A-325 SR310-70 · A-325SR310-70 · ARP325 · 042130 · +1 more
  14. O-RING NSN 5331-01-076-6164 P/N AS568-251MIL-G- 1149TY2CL5 · ST266Z5B · 2-251N103-70 · 5430-29 · +1 more
  15. O-RING NSN 5331-01-076-4969 P/N 2606457-6 · 2606457-6 · 10117150 · DB1821 · +1 more
  16. O-RING NSN 5331-01-076-0364 P/N M25988/3-903 · MIL-DTL-25988/3 · MIL-R-25988/3 · 538395-903 · +1 more
  17. O-RING NSN 5331-01-075-8233 P/N 900-D-003 ITEM 29 · 900-D-003 ITEM 29 · 100-D-054 · 100-D-054 · +1 more
  18. O-RING NSN 5331-01-075-5980 P/N D73932 · 73932 · 382781R1 · D-73932 · +1 more
  19. O-RING NSN 5331-01-075-5979 P/N D73931 · 73931 · 22278R1 · 22278R1 · +1 more
  20. O-RING NSN 5331-01-075-2066 P/N 203-4678530 ITEM 0007 · 203-4678530ITEM · MILG21610TYL1 30.325IDX0.275W · MIL-G-21610 · +1 more
  21. O-RING NSN 5331-01-075-2038 P/N 50-65374-02 · 8-52-239ITEM 11 · 50-65374-02 · 65374-2 · +1 more
  22. O-RING NSN 5331-01-074-3861 P/N A6689-232-222 · A6689.232.222 · 20253 FIND NO. 35 · A6689.232.222 · +1 more
  23. O-RING NSN 5331-01-073-3690 P/N 10554998-1 · 2-011 C1124 · 2-011C147-70 · 2-011C1124-70 · +1 more
  24. O-RING NSN 5331-01-072-9195 P/N MS28775-009 · MS28775-009 · P48026-009 · SAE-AS28775 · +1 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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