Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 598-1370-ND found under Heat Sink Electrical Electronic by Digi Key Corporation Dba Digi Key Electronics. The National Stock Number assigned to this part is 5999015891891, and the Federal Supply Class is 5999 Miscellaneous Electrical And Electronic Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 598-1370-ND.