Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 170645791 found under Disk Clutch Nonvehicular by Komatsu America Corp. The National Stock Number assigned to this part is 3010003717507, and the Federal Supply Class is 3010 Torque Converters And Speed Changers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 170645791.