Spring retainer bracket used on some Data East and Sega machines with an extension spring.
Data East/Sega #535-6431-00.
Used in the following Data East machines:
Lethal Weapon 3
Star Wars
Rocky and Bullwinkle
Jurassic Park
Last Action Hero
Tales from the Crypt
Tommy
WWF Royal Rumble
Guns N' Roses
Maverick
Used in the following Sega machines:
Mary Shelley's Frankenstein
Baywatch
Batman Forever (early production)