Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 753404-1 found under Plate Seal Turbine by Paramount Machine Companyinc. The National Stock Number assigned to this part is 1660012027113, and the Federal Supply Class is 1660 Aircraft Air Conditioning Heating And Pressurizing Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 753404-1.