Petrol tap, pull on push off, turn lock, 3/8in BSP to 7/16 Gas

Petrol tap, pull on push off, turn to lock ,3/8 inch BSP thread to 7/16"Gas (UNF) (19TPI), inbuilt filter, inner level tube. Use part BT-IF014403 -forEM351 for ouput hose connector.
Fitted to BSA and Ariel
OEM 67-8092; 678092 OEM 5050-54A