Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B75-1 found under Solenoid Electrical by Zenith Fuel Systems Inc. The National Stock Number assigned to this part is 5945006539437, and the Federal Supply Class is 5945 Relays And Solenoids. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B75-1.