Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WMS4C50 found under Circuit Breaker by Vectron International Inc. The National Stock Number assigned to this part is 5925015536406, and the Federal Supply Class is 5925 Circuit Breakers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like WMS4C50.