Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PP905 found under Disk Clutch Vehicul by The S K Wellman Corp. The National Stock Number assigned to this part is 2520006230759, 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 PP905.