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 5331-01-412-4837 P/N AMC-R-83485 · M83485/1-903 · MIL-R-83485 · M83485/1-903 · +3 more
  2. O-RING NSN 5331-01-412-4456 P/N M83485/1-026 · AMC-R-83485 · MIL-R-83485 · M83485/1-026 · +3 more
  3. O-RING NSN 5331-01-412-4122 P/N M83485/1-028 · AMC-R-83485 · MIL-R-83485 · M83485/1-028 · +3 more
  4. O-RING NSN 5331-01-412-4066 P/N AMC-R-83485 · M83485/1-038 · M83485/1-038 · MIL-R-83485 · +3 more
  5. O-RING NSN 5331-01-412-4004 P/N AMC-R-83485 · M83485/1-031 · M83485/1-031 · MIL-R-83485 · +3 more
  6. O-RING NSN 5331-01-412-3937 P/N AMC-R-83485 · M83485/1-916 · MIL-R-83485 · M83485/1-916 · +3 more
  7. O-RING NSN 5331-01-411-5877 P/N M83485/1-227 · AMS-R-83485/1 · MIL-R-83485/1 · M83485/1-227 · +3 more
  8. O-RING NSN 5331-01-410-7100 P/N 72094 · 72094 · 72094 · 30CT93-114 REF3 PC78 · +3 more
  9. O-RING NSN 5331-01-400-3665 P/N SV799337 FIND 5 · STSV047AL039 · STSV047AL039 · SV799337 FIND 5 · +3 more
  10. O-RING NSN 5331-01-400-2648 P/N STSV047 · STSV047AL217 · SV792300 FIND 90 · SV792300 FIND 90 · +3 more
  11. O-RING NSN 5331-01-399-3807 P/N AS3208-16 · 5331PL2223986 · AS3208-16 · 5331013993807 · +3 more
  12. O-RING NSN 5331-01-398-5268 P/N 408832342 · M83461/1-259 · M83461/1-259 · 10326311 · +3 more
  13. O-RING NSN 5331-01-396-8001 P/N 09A136-500 · 600-500 · ST7M258-500 · ST7M258H500 · +3 more
  14. O-RING NSN 5331-01-395-4633 P/N AS3209-139CP · M83248/1-139 · 5331PL1038174 · 59A-005 · +3 more
  15. O-RING NSN 5331-01-393-8034 P/N M0190-01400 · 901C5-987 · 901C5-987 · M0190-01400 · +3 more
  16. O-RING NSN 5331-01-392-1637 P/N 5-X-1155ATI · 500001054E · 5-X-1155 · BCP8009 · +3 more
  17. O-RING NSN 5331-01-391-9836 P/N 845-2445134 PIECE 15 · AMS-P-83461/MIL-P-83461/1/219 · MS28775-219 · MIL-P-83461/1-219 · +3 more
  18. O-RING NSN 5331-01-390-3882 P/N 803-6397247-3XX1-29 · M83461/1-212(SE) · AMS-P-83461 · M83461/1-212(SE) · +3 more
  19. O-RING NSN 5331-01-390-1270 P/N AS3209-112 BROWN ONLY · AMS7276 · MIL-R-83248 · M83248/1-112 BROWN ONLY · +3 more
  20. O-RING NSN 5331-01-389-6859 P/N MS9967-015 · MS9967-015 · 5331PL2165678 · MS9967-015 · +3 more
  21. O-RING NSN 5331-01-387-6839 P/N 925092-9 · 925092-9 · 925092-9 · 923107.0396 · +3 more
  22. O-RING NSN 5331-01-384-7502 P/N 91584647 · 91584647 · Q4-364 B70 · 91584647 · +3 more
  23. O-RING NSN 5331-01-384-0702 P/N M83461/1-241 · AMS-P-83461/1 · M83461/1-241 · MIL-P-83461/1 · +3 more
  24. O-RING NSN 5331-01-383-2673 P/N AMS-P-83461/1 · M83461/1-205 · MIL-P-83461/1-205 · M83461/1-205 · +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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