Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 8B-66 found under Capacitor Fixed Plastic Dielectr by Hewlett Packard Co. The National Stock Number assigned to this part is 5910007979742, 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 8B-66.