Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AS954 TY1CL1STA found under Socket Socket Wrench by General Services Administration. The National Stock Number assigned to this part is 5120001816816, 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 AS954 TY1CL1STA.