Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CCR4A28S1 found under Relay Electromagnetic by Computer Components Inc. The National Stock Number assigned to this part is 5945002419284, 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 CCR4A28S1.