Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DD 063 000 21 PC 12 13 found under Cover Oil Passage Transmission by Waukesha Bearings Corporation. The National Stock Number assigned to this part is 2520013751170, and the Federal Supply Class is 2520 Vehicular Power Transmission Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like DD 063 000 21 PC 12 13.