Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DD692 JM 1931-1 found under Roller Assembly by Otis Elevator Co. The National Stock Number assigned to this part is 2030003949984, and the Federal Supply Class is 2030 Deck Machine. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like DD692 JM 1931-1.