Bell signal; mechanical telegraph
NSN 6145-00-663-6133
NSN 5950-00-882-1931
NSN 5990-01-543-6301
NSN 6105-01-461-3104
NSN 5990-01-562-4521
NSN 5998-01-039-6962
NSN 6105-01-227-9381
NSN 5960-01-053-4358
NSN 5835-01-005-8564
NSN 2925-01-317-6973
NSN 5930-01-574-6351
NSN 5835-00-275-0584
Last Updated: 05/15/2024