Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 41V31 found under Torch Welding Gas Shielded Arc by L Tec Welding And Cutting Systems. The National Stock Number assigned to this part is 3431000431587, 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 41V31.