The HONEYWELL part 1CH28-4 is a MICRO SWITCHâ„¢ Sealed Aero Switch that is specially designed for applications that require a compact and durable switch. It features a corrosion resistant steel plunger and bushing, ensuring long-lasting performance even in harsh environments. This switch meets MIL-PRF-8805 Symbol 3 standards, making it suitable for use in military and aerospace applications. The pin plunger actuator allows for precise and reliable switching, while the lead wire termination enables easy installation.With SPDT circuitry and a fine silver contact, this switch provides excellent electrical performance. It has a resistivity of 4 Amps and an inductive rating of 2 Amps at 28 Vdc.Overall, the HONEYWELL part 1CH28-4 is a reliable and versatile switch that is ideal for demanding applications where durability and performance are crucial.