Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FIT 321 1 4 found under Connector Plug Elec by Alpha Wire Corporation. The National Stock Number assigned to this part is 5935015271715, 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 FIT 321 1 4.