Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K5406020-011 found under Semiconductor Device Assembly by Hi Shear Corporation. The National Stock Number assigned to this part is 5961013642510, and the Federal Supply Class is 5961 Semiconductor Devices And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like K5406020-011.