Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R8100-1 found under Relay Reed by Elec Trol Inc. The National Stock Number assigned to this part is 5945011488455, 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 R8100-1.