Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GS15530-1 found under Adapter Torque Wrench by Hamilton Sundstrand Corporation. The National Stock Number assigned to this part is 5120011094789, 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 GS15530-1.