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 5331-01-387-2248 P/N NAS1612-6 · NAS1613 · NAS1602-906 · 5331PL2077737 · +7 more
  2. O-RING NSN 5331-01-386-9843 P/N 1000-0060-22 · 3423-1001-1 ITEM 26 · M83248/1-022CP · AMS7276 · +7 more
  3. O-RING NSN 5331-01-386-0577 P/N 216-7015668ITEMF-398 · 216-7015770ITEMF-508 · 216-7015787ITEMF-398 · 216-7015669ITEMF-398 · +7 more
  4. O-RING NSN 5331-01-233-9298 P/N 140R · AMS-P-83461 · AS568C-914 · AS568 · +7 more
  5. O-RING NSN 5331-01-231-7479 P/N 1298023-26 · 1298023-26 · NAS 1611-208 · 2-208 E515-80 · +7 more
  6. O-RING NSN 5331-01-230-5215 P/N AS568 · AS568B-108 · AMS3209 · MIL-STD-413 · +7 more
  7. O-RING NSN 5331-01-222-6927 P/N AS3581-254 · AMS7259 · M83248/2-254 · MIL-R-83248/2-254 · +7 more
  8. O-RING NSN 5331-01-222-6593 P/N 299945 ITEM 9 · 299945-100-2 · MS28775-268 · MS28775-268 · +7 more
  9. O-RING NSN 5331-01-222-0838 P/N AS3581 · AMS7259 · MIL-R-83248/2 · M83248/2-335 · +7 more
  10. O-RING NSN 5331-01-090-1552 P/N M83461/1-215 · AMS-P-83461/1 · M83461/1-215 · MIL-P-83461/1 · +7 more
  11. O-RING NSN 5331-01-089-1583 P/N 99147167 · AMS-P-83461/1 · M83461/1-139 · MIL-P-83461/1 · +7 more
  12. O-RING NSN 5331-01-088-7903 P/N 7377-275 · MS28775-275 · P48026-275 · 4067-70-275 · +7 more
  13. O-RING NSN 5331-01-079-5184 P/N S8057AP115 · S9412-020 · MIL-R-25988/2 · MIL-DTL-25988/2 · +7 more
  14. O-RING NSN 5331-01-077-5840 P/N AS568-904 · AS568-904MILP25732 · ARP568-904MILP25732 · 4410173-9040 · +7 more
  15. O-RING NSN 5331-01-063-8978 P/N PRP568-259-4067-70 · ARP568-259MILP25732 · AS28775 P/N MS28775-259 · MIL-P-25732C · +7 more
  16. O-RING NSN 5331-01-063-6433 P/N S9026L126 · AS3209-126 · MILR83248 · 5331PL2024411 · +7 more
  17. O-RING NSN 5331-01-061-3261 P/N 36390 FIND 33 · 38266 · 38266 · 36390 FIND 33 · +7 more
  18. O-RING NSN 5331-01-061-3000 P/N 30048 · S8057BG6 · C577-7-2-11 · 5006-73 · +7 more
  19. O-RING NSN 5331-01-058-4009 P/N NAS1594-131 · M83248/2-131 · AS568-131MILR83248TYPE1CLASS2 · MIL-R-83248/2 · +7 more
  20. O-RING NSN 5331-01-056-8717 P/N 2692078-449 · 7448MR733-T · 7448MR160T · 2692078-448 · +7 more
  21. O-RING NSN 5331-01-050-8200 P/N MS28775-151 · 396-00 · 40175-01 FIND 38 · MS28775-151 · +7 more
  22. O-RING NSN 5331-01-050-1537 P/N AS568-239MILG23652TY2 · AS3581-239 · MIL-R-83248/2 · M83248/2-239 · +7 more
  23. O-RING NSN 5331-01-047-7956 P/N 2507294-24 · 2507294 · 2507294-24 · 2-038N219-7 · +7 more
  24. O-RING NSN 5331-01-036-8537 P/N 040.705.0058 · NMP1093PC38 · AS568-229V · 4P4892 · +7 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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