Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 340HPSIHNMS found under Dehydrator Desiccant Electric by Zeks Air Drier Corp. The National Stock Number assigned to this part is 4440014088738, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 340HPSIHNMS.