Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 448-332-4789 NO found under Window Marine by National Steel And Shipbuilding. The National Stock Number assigned to this part is 2090014445803, and the Federal Supply Class is 2090 Miscellaneous Ship And Marine Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 448-332-4789 NO.