Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 94-158-045 found under Collet Welding Torch by Arcair Co. The National Stock Number assigned to this part is 3433013213342, and the Federal Supply Class is 3433 Gas Welding Heat Cutting And Metalizing Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 94-158-045.