Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 149-403 found under Valve And Nozzle As by Hd Hudson Manufacturing Company. The National Stock Number assigned to this part is 3740011109078, and the Federal Supply Class is 3740 Pest Disease And Frost Control Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 149-403.