A5 Petcock

A5. 10x1 male spigot right

A5 10×1 spigot right
1b15001017  $15
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Italy made by OMG

Links to photos of examples:

1976 Itom Automatic
1978 Safari Super Extra
1978 Pacer Sport (original was A8)
1979-89 Di Blasi R7     #141 on left side
1989-97 Di Blasi R7TB #141 on left side
1996 Di Blasi R7 original

 Any top-tank model, with a 10 x 1 threaded hole on the left side (and nothing nearby) would use this A5 petcock.