The GRAYHILL part 04A is a durable and reliable push button switch with a 4PST (4Pole Single Throw) configuration. It features a plunger design and is capable of handling a current rating of 0.25A at a voltage of 220VAC. This switch is designed for through-hole mounting with PC pins, ensuring secure connections and ease of installation. It is perfect for various industrial and commercial applications where a dependable push button switch is needed.