White O-ring with 1-1/4 inches (31.8 mm) inner diameter.
Reference:
25-0060
Atari 006127-06
Bally R-141
Bally R-521-1
Chicago Coin Machine 6062
Game Plan 08-30006N
Gottlieb A-10219
Marco 38-1250
Sega/Stern/Data East 545-5025-06
Stern S.E.I. 7A-120-125
Stern S.P.I. 545-5348-56
Wico 19-008500
Williams 23-6303
Zaccaria A4252