This is a general replacement spring for many solenoid assemblies.(10-326+)
It’s a perfect sub for any other flipper plunger return spring application, calling for the non-tapered.
It is a bit beefier than the 10-135, so I don’t recommend it on the earlier lower voltage Williams flipper coils, use the 10-135.
This can be used on any brand of pop bumper, and general solenoid as a plunger return spring.
Old Stern: 5A-175 & 5A-164
Data East: 266-5009-00