Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9787E40-1 found under Arm Ignition Switch Contact by Cecom Lr Center. The National Stock Number assigned to this part is 2920007880431, and the Federal Supply Class is 2920 Engine Electrical System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 9787E40-1.