CM-55
Chicago Miniature CM-55 Miniature Lamp, Light Bulb 55 (Pack of 30)
Hzutloer is the brand here, and you will find that it holds up well in industrial settings.
Chicago Miniature CM-55 Miniature Lamp 55 (Pack of 30)
You will find that DSP RICHAUTO products are easy to identify on shelves.