Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 120A1-100SST2 found under Relay Solid State by Amperite Co Inc. The National Stock Number assigned to this part is 5945015987370, 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 120A1-100SST2.