A fixed number of components and/or items, not all having the same basic name, which utilizes sound waves for underwater communications.
Classification: Parts & accessories for direction finding compasses and other navigational instruments and appliances
NSN 7035-00-922-5700
NSN 5835-01-082-6395
NSN 5920-00-925-2639
NSN 5960-01-478-2672
NSN 6110-01-243-4200
NSN 5965-01-138-4979
NSN 6150-01-361-8071
NSN 5835-01-454-5267
NSN 6650-01-301-8806
NSN 6110-01-495-4216
NSN 6610-01-076-4800
NSN 6110-00-229-5541