Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D72.0397 HL-23.1 found under Circuit Card Assemb by American Hofmann Corporation. The National Stock Number assigned to this part is 5998013034355, and the Federal Supply Class is 5998 Electrical And Electronic Assemblies Boards Cards And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like D72.0397 HL-23.1.