Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K939030501 found under Winch Drum Power Operated by Argon Corp. The National Stock Number assigned to this part is 3950016046819, 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 K939030501.