Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4473 001 found under Key Polarizing Electrical Connector by Southern Plastic Mold Inc. The National Stock Number assigned to this part is 5935004871849, and the Federal Supply Class is 5935 Connectors Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4473 001.