Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ARCALOY 312 AC-DC 0.187 found under Electrode Welding by Esab Group Inc The. The National Stock Number assigned to this part is 3439009024208, and the Federal Supply Class is 3439 Miscellaneous Welding Soldering And Brazing Supplies And Accessories. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ARCALOY 312 AC-DC 0.187.