Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2157191P4 found under Retainer Capacitor by Atlee Of Delaware Incorporated. The National Stock Number assigned to this part is 5910005039800, and the Federal Supply Class is 5910 Capacitors. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2157191P4.