Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1755-1 found under Zenith Hatch Assy by L 3 Communications Essco Inc. The National Stock Number assigned to this part is 5342014925947, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1755-1.