Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 121P10691R5S9 found under Capacitor Fixed Pap by Dearborn Electronics Inc. The National Stock Number assigned to this part is 5910004934799, 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 121P10691R5S9.