Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 421-014 found under Cable Assemblyradio Frequency by Cef Industries Inc. The National Stock Number assigned to this part is 5995016909586, and the Federal Supply Class is 5995 Cable Cord And Wire Assemblies Communication Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 421-014.