Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 18A-189 found under Brazing And Soldering Set by Uniweld Products Inc. The National Stock Number assigned to this part is 3433002558953, 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 18A-189.