Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6D40-223 found under Pump Subassembly Rotary by Carrier Machinery And Systems Div Of. The National Stock Number assigned to this part is 4320005080648, and the Federal Supply Class is 4320 Power And Hand Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 6D40-223.