Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1223E0177 found under Cover Motor Generat by Martin Marietta Technologies Inc. The National Stock Number assigned to this part is 6125013557466, and the Federal Supply Class is 6125 Converters Electrical Rotating. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1223E0177.