Off with plunger depressed, spring return to On. SPST Normally On.
Self-grounding With faceplate. One screw terminal. Two 9/64" diameter (3.6mm) mounting holes, 1 3/8" (34.9mm) on centers. 45/64" diameter (17.9mm) plated steel case. Plunger: 7/16" long (11.1mm). 5A at 12V DC.
Door momentary switch
Self-grounding; same as 9001 except it includes one screw terminal