Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NO PRIMARY REF 99-957-6926 found under Capacitor Fixed Ele by This Ncage Is Used To Inform That. The National Stock Number assigned to this part is 5910999576926, 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 NO PRIMARY REF 99-957-6926.