Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3H2002 found under Cap Dust Propeller by Caterpillar Inc. The National Stock Number assigned to this part is 2520010900929, 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 3H2002.