Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 170843-001 found under Torch Outfit Welding Gas Shielde by R And D Metals And Chemicals Inc. The National Stock Number assigned to this part is 3431013583448, and the Federal Supply Class is 3431 Electric Arc Welding Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 170843-001.