Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12B7790-1 found under Mechanism Assy Erec by Boehme H O Inc. The National Stock Number assigned to this part is 1280003230658, 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 12B7790-1.