Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AS-1858 APN-171(V found under Antenna by Joint Electronics Type Designation. The National Stock Number assigned to this part is 5985008990817, and the Federal Supply Class is 5985 Antennas Waveguides And Related Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AS-1858 APN-171(V.