Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B938644 found under Drum Aluminum by Harken Incorporated. The National Stock Number assigned to this part is 3950015470550, and the Federal Supply Class is 3950 Winches Hoists Cranes And Derricks. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B938644.