Coil sleeve - 1-3/4 x 1/2 inch
#03-7066
Coil sleeve - 1-3/4 x 1/2 inch
#03-7066
Nylon coil sleeve (plastic tubing) is the most commonly used size
on all brands of pinball machines.
Measures 1-3/4 overall length x 1/2 inch shaft Outer Diameter.
Typically found on pop bumper, slingshots, kickers, and early
solid state and electromechanical flipper solenoid assemblies.
One of the best and least expensive ways to perk up your sluggish
mechanical solenoid assemblies is to do a 'shotgun' replacement
of all coil sleeves.
Reference: