Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number UHD 400 1 found under Microcircuit Linear by Sprague Electric Co. The National Stock Number assigned to this part is 5962012498038, and the Federal Supply Class is 5962 Microcircuits Electronic. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like UHD 400 1.