#10 split lock washer (a.k.a. - high collar washer).
This washer is used in conjunction with a #10-32 x 3/8" socket head bolt to attach coil stops to their base plates in many (but not all) flipper assemblies.
Data East/Sega/Stern #244-5003-00.
Williams/Bally #4701-00004-00.
This washer is used in conjunction with a #10-32 x 3/8" socket head bolt to attach coil stops to their base plates in many (but not all) flipper assemblies.
Data East/Sega/Stern #244-5003-00.
Williams/Bally #4701-00004-00.
American Pinball #WAS1010-00.
Stern #244-5003-00.
Stern #244-5003-00.