9 pin socket, black high temperature plastic, gold pins, bayonet base for aluminum or steel shield. Fits 3/4″ and 7/8″ chassis holes with 1-1/8″ mounting ear spacing. This is a tube base only, no shield.
Nylon spacer for SKT-8 and SKT-8A octal tube socket. This is the small washer used to install the socketflush with the chassis. It goes on the bolt between the chassis and the mounting ear of the socket. (not necessary the EL84 socket.)