Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2853 found under Clutch Half Positive Nonvehicula by Advance Gear And Machine Corp. The National Stock Number assigned to this part is 3010005548909, 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 2853.