Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2304-0071 found under Cup Welding Torch by Cni Ceramic Nozzles Inc. The National Stock Number assigned to this part is 3431006889787, 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 2304-0071.