Firestone pin-lock keg post (gas 9/16"-18 vs Jg10: specs compared
Updated 05 September 2026.
6
specs differ
Firestone pin-lock keg post (gas 9/16"-18 and Jg10 differ on 6 specs: designation, size / thread, fitting form, seals on, rating / role, tube od.
| Spec | Firestone pin-lock keg post (gas 9/16"-18 | Jg10 |
|---|---|---|
| Designation | gas 9/16"-18, liquid 5/8"-18 | 10 mm OD |
| Size / thread | gas post 9/16"-18 UNF, liquid post 5/8"-18 UNF (different sizes) | 10 mm OD tube |
| Fitting form | UNF male post thread | push-fit collet, metric |
| Seals on | poppet inside the post; post base O-ring seals to the keg lid | single O-ring plus a stainless collet grab-ring |
| Rating / role | Firestone, Challenger and Super Challenger pin-lock kegs | John Guest Speedfit metric fittings for 10mm OD tube |
| Tube OD | 10 mm |
Questions and answers
How do Firestone pin-lock keg post (gas 9/16"-18 and Jg10 compare?
Firestone pin-lock keg post (gas 9/16"-18 and Jg10 differ on 6 specs: designation, size / thread, fitting form, seals on, rating / role, tube od.