Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number W1 FW 22 25RED found under Guard Switch by Williams Pyro Inc. The National Stock Number assigned to this part is 5930012232906, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like W1 FW 22 25RED.