Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A2303 found under Drive Engine Starte by Purolator Products Co Div Motor. The National Stock Number assigned to this part is 2920000348685, 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 A2303.