Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 7-311111267 found under Duct Transition Rh by Mcdonnell Douglas Helicopter. The National Stock Number assigned to this part is 1560011706946, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 7-311111267.