H-516-3A - 

H-516 Series 15 Turn Counting Dial
From Bourns, the H-516 Series Counting Dial is for use with precision potentiometers or other rotating devices of up to 15 turns. The H-516 Series 0 – 15 turn counting dial has a compact design requiring only 22.8 mm diameter panel space, has no backlash and is for use with plastic shafts.