The PVT4FS4SS335 is an illuminated pushbutton switch featuring a stainless steel housing and green LED illumination ring designed for panel-mount applications. It operates as a momentary contact switch with a single pole-double throw (SPDT) configuration, connecting terminals 1–2 when actuated. The switch is rated for 50 mA at 24 VDC with a contact material of silver and gold-plated terminals for the switch circuit, while silver-plated terminals serve the LED circuit. Key electrical characteristics include an insulation resistance of 1000 MO minimum, dielectric strength of 250 VAC for 1 minute, contact resistance of 100 mO maximum, and an electric life of 500,000 make-and-break cycles at full load. The device operates across a temperature range of -25 °C to +55 °C, features an IP65 ingress protection rating, and includes a 0.5 mm travel distance with an M19 × 1.0 thread for mounting. This switch is ideal for industrial control panels, machinery interfaces, and applications requiring visual feedback with reliable momentary switching action.