Pink Seimitsu arcade pushbutton with plane (flat) plunger.

Button Specifications:

• Diameter: 30 mm (1.181 inch), snap-in action (no thread, no screwing).Overall diameter: 34.5 mm (1.358 inch),
• Installation depth: 32.5 mm (1.28 inch)
• .110 terminals
• For Metal control panels

Microswitch Specification:

• Product Name: MM9-4
• Manufacturer: Tokai Tushinkizai (東海通信器材株式会社)
• Operating force: 100 ± 30g
• Stroke distance to Operating Position: 2.5 ± 0.3mm
• Bounce back to Free Position: Less than 10mSec
• Mechanical Endurance (Cycle): Over 2,000,000 times