Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SK2129-135-20 found under Drive Mechanism Dishwasher by Insinger Machine Company The. The National Stock Number assigned to this part is 7320012130178, 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 SK2129-135-20.