Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A4T12-A15 found under Trestle Hoist Portable by B E Wallace Products Corp. The National Stock Number assigned to this part is 3950012176578, 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 A4T12-A15.