Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PP1022 found under Disk Clutch Vehicular by The S K Wellman Corp. The National Stock Number assigned to this part is 2520006404345, 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 PP1022.