Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TX50-T50 found under Screwdriver Attachment Socket Wr by Best Way Tools By Anderson Inc. The National Stock Number assigned to this part is 5120011704449, and the Federal Supply Class is 5120 Hand Tools Nonedged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like TX50-T50.