Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A41-1 found under Dehydrator Desiccant Electric by Kemp C M Mfg Co. The National Stock Number assigned to this part is 4440002671801, 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 A41-1.