Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 842-13002 found under Trolley Hoist by Duffnorton Co Inc. The National Stock Number assigned to this part is 3950011998581, 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 842-13002.