Generally this will fit most turntables with a 'Straight' shaped tonearm (usually found in Japanese Imports like JVC, Sansui etc) that pivot from the right rear corner of the deck. (not intended for linear tracking turntables.)  It requires an empty socket at the front end of the tonearm. The tonearm socket must be .320 inches in diameter, have a set screw and have four pins in the socket, and a single set screw on the tonearm that holds the headshell in place.

UPDATE: click product image above to view a closeup of the plug.

HITACHI HT-6M

JVC L-F41

email us your model info if it uses this headshell.