Cga326 vs Cga580: specs compared
Updated 05 September 2026.
5
specs differ
Cga326 and Cga580 differ on 5 specs: designation, size / thread, fitting form, seals on, rating / role.
| Spec | Cga326 | Cga580 |
|---|---|---|
| Designation | 0.825"-14 NGO RH, round seat | 0.965"-14 NGO RH |
| Size / thread | 0.825"-14 NGO right hand, external, large round nipple | 0.965"-14 NGO (National Gas Outlet), right hand, external |
| Fitting form | cylinder valve outlet nut, round seat | cylinder valve outlet nut, external |
| Seals on | washer against a round nipple seat | nylon or fibre washer inside the nut against the valve outlet |
| Rating / role | the nitrous oxide cylinder connection; shares the thread of CGA-320 but not the seat | the North American connection for nitrogen, argon and beer-gas (N2/CO2 mix) cylinders, up to 3000 psig |
Questions and answers
How do Cga326 and Cga580 compare?
Cga326 and Cga580 differ on 5 specs: designation, size / thread, fitting form, seals on, rating / role.