Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BS-0490-0123 found under Relay Electromagnet by British Sarozal Ltd. The National Stock Number assigned to this part is 5945009510379, 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 BS-0490-0123.