Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SP530-0053 found under Relay Electromagnetic by Osicom Technologies Inc. The National Stock Number assigned to this part is 5945008835324, 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 SP530-0053.