Faucetnut vs Post Firestone: specs compared
Updated 05 September 2026.
5
specs differ
Faucetnut and Post Firestone differ on 5 specs: designation, size / thread, fitting form, seals on, rating / role.
| Spec | Faucetnut | Post Firestone |
|---|---|---|
| Designation | 7/8"-14 (faucet to shank) | 9/16"-18 UNF |
| Size / thread | 7/8"-14 internal thread | 9/16"-18 UNF (about 14.3 mm major) |
| Fitting form | knurled coupling nut, front of shank | UNF male post thread |
| Seals on | metal to metal as the nut draws the faucet body onto the shank nose | poppet inside the post; post base O-ring seals to the keg lid |
| Rating / role | the nut that locks a beer faucet onto the front of a shank | gas and liquid posts share the thread; disconnect snaps over the outside |
Questions and answers
How do Faucetnut and Post Firestone compare?
Faucetnut and Post Firestone differ on 5 specs: designation, size / thread, fitting form, seals on, rating / role.