Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1128P41537-1 found under Duct Assembly Oil C by Aerometals Inc. The National Stock Number assigned to this part is 1560004569784, 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 1128P41537-1.