Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 339-255-3-100 found under Window Observation by Bath Iron Works Corporation. The National Stock Number assigned to this part is 9340000647276, and the Federal Supply Class is 9340 Glass Fabricated Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 339-255-3-100.