Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 66 10003 found under Fillet Wing To Fuse by Hi Shear Corporation. The National Stock Number assigned to this part is 1560001446893, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 66 10003.