Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ASME B94.54 DIA 4 1 2 found under Blade Kit Hole Saw by American Society For Testing And. The National Stock Number assigned to this part is 3455000038985, and the Federal Supply Class is 3455 Cutting Tools For Machine Tools. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ASME B94.54 DIA 4 1 2.