This is a 1000 ohm earphone used in mk-1697/g with combat vehicle crew members helmets
NSN 5985-00-518-1748
NSN 5950-01-393-9222
NSN 6620-01-319-8178
NSN 5835-01-381-1824
NSN 5950-00-952-2497
NSN 2925-01-516-5113
NSN 5950-01-432-1331
NSN 5985-00-456-6965
NSN 2925-00-728-8118
NSN 6150-01-487-2954
NSN 6130-01-502-2105
NSN 4140-01-141-7692
Last Updated: 05/15/2024