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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 5331-00-941-9444 P/N AS3582-041 · MS9068-041 · 1602321-87 · MS9068-041 · +3 more
  2. O-RING NSN 5331-00-940-9475 P/N 044-19357 · AS3582-044 · MS9068-044 · 2-044 S604-70 · +3 more
  3. O-RING NSN 5331-00-939-9096 P/N MS9068-157 · AS3582-157 · MS9068-157 · 2-157 S604-70 · +3 more
  4. O-RING NSN 5331-00-939-9095 P/N AS3582-021 · MS9068-021 · 10382204 · 2-021 S604-70 · +3 more
  5. O-RING NSN 5331-00-938-4263 P/N 28904-63 · 28904-63 · 28904-63 · 28904-63 · +3 more
  6. O-RING NSN 5331-00-936-6116 P/N A06689.244.142 · 20205 FIND 29 · 20017 PIECE 30 · 9902PC28 · +3 more
  7. O-RING NSN 5331-00-935-9239 P/N NAS1613 · NAS1611-033 · SM-C-773504-10 · HTE7300E3-033 · +3 more
  8. O-RING NSN 5331-00-935-9119 P/N ARP568-028-11647 · HPS55-028 · ARP568-028L308-8 · HPS55-028 · +3 more
  9. O-RING NSN 5331-00-935-9115 P/N ARP568-016-11647 · HPS55-016 · ARP568-016L308-8 · HPS55-016 · +3 more
  10. O-RING NSN 5331-00-935-6018 P/N 2KP784 · 2GH888 · 154132 · 50001-916-0260 · +3 more
  11. O-RING NSN 5331-00-933-3765 P/N 9333765 · AB00701623076 · AB00701623076 · 07-1623076 · +3 more
  12. O-RING NSN 5331-00-933-3764 P/N 9333764 · AB00701623077 · AB00701623077 · 007394997 · +3 more
  13. O-RING NSN 5331-00-933-2097 P/N 571020 · 571020 · 571019 · 571020 · +3 more
  14. O-RING NSN 5331-00-932-2442 P/N 640577 · 571028 · 571029 · MS9967-120 · +3 more
  15. O-RING NSN 5331-00-928-0487 P/N AS568-258 · AMS3301 · 2-258 S469-40 · 2-258S469-4 · +3 more
  16. O-RING NSN 5331-00-927-9614 P/N AS568-115/AMS-P-5516 CLB · ARP568-115,MILP5516 C1B · ARP568-115,MILP5516 C1B,CP · AS568-115 · +3 more
  17. O-RING NSN 5331-00-927-0029 P/N AMS3304 · AS3582-153 · 121450G3PC67 · MS9068-153 · +3 more
  18. O-RING NSN 5331-00-926-9331 P/N AS3582-244 · MS9068-244 · AS568-244AMS330 4 · AS3582-244 · +3 more
  19. O-RING NSN 5331-00-925-7837 P/N AS568-907 · AS5687-907 · AS568-907MILP25732 · MIL-P-25732 · +3 more
  20. O-RING NSN 5331-00-922-5952 P/N AS3209-014 · 5331PL0140362 · AS3209-014 · ST3001-014 · +3 more
  21. O-RING NSN 5331-00-922-5057 P/N AS3209-026 · 5331PL0140366 · AS3209-026 · AS3209-026 · +3 more
  22. O-RING NSN 5331-00-920-9217 P/N NAS1613 · NAS1612-2 · NAS1612-2A · 3-902E515-80 · +3 more
  23. O-RING NSN 5331-00-918-7208 P/N 1600-1 PART 3 · AS568-210 MIL-G-1149B TY 2 CL 1 · AS568-210MIL-G- 1149B TYII CL 1 · 2-210C147-70 · +3 more
  24. O-RING NSN 5331-00-917-4698 P/N PRP568-460-4024-65 · AS3578-460 · MS9021-460 · 2-460 N506-65 · +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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