Amphenol Nexus Technologies manufactures the complete line of qualified MIL-DTL-55116 five and six pin audio connectors.
This encompasses waterproof, polarized plugs and receptacles for use in audio frequency circuits at 60 volts maximum potential and 0.5 amperes maximum current.
Connectors can utilize either crimp sleeve or solder cup contacts. The rigid contacts in the plug connectors mate with the pogo-pin, or spring-loaded, contacts in the receptacle.
Plugs come with a wire strain relief or molded strain relief. Receptacles are available in either panel-mount or an in-line receptacle.
Connector options, such as shielding, filtering, right-angle connectors, and miniaturization of M55116 products are available.
These connectors are used throughout military radio systems and intercom systems for ground, vehicle, airborne, and naval communications.

Audio Plugs
AP-105 (U-182 B/U)	AP-106 (U-182-B/U )	AP-115 (U-229 B/U)
Five Conductor	Six Conductor	Five Conductor
Mates with U-183/U and U-228/U. Use with customer molded rubber strain relief. AP-106 is the same as AP-105 except it has six conductors.Datasheet	Six conductor mates with U-183/U and U-228/U. Use with molded rubber strain relief.Datasheet	Mates with U-183/U and U-228/U. Coil spring strain relief. The AP-116 is the same as AP-115 except it has six conductors.Datasheet
AP-116 (U-229 B/U)	AP-125 (M55116/1)	AP-126 (M55116/2 U-229 Type)
Six Conductor	Five Conductor	Six Conductor
Six conductor mates with U-183/U and U-228/U. Coil spring strain relief. Datasheet	Wire strain relief, crimp sleeve terminals.Datasheet	Wire strain relief, crimp sleeve terminals.Datasheet
AP-135	AP-136	AP-136RA
Shielded Five Conductor	Shielded Six Conductor	Shielded Six Conductor
Wire strain relief, crimp sleeve terminals.Datasheet	Same as AP-126 with provision to terminate shielded cable. Mating configuration meets MIL-C-55116specifications.Datasheet	Shielded Right-angle Plug.Datasheet
AP-145 (M55116/3)	AP-146 (M55116/4 U-229 Type)	AP-155 (M55116/5)
Five Conductor	Six Conductor	Five Conductor
Wire strain relief, solder cup terminals.Datasheet	Wire strain relief, solder cup terminals. Datasheet	Customer Molded strain relief, crimp sleeve terminals.Datasheet
AP-156 (M55116/6)	AP-165 (M55116/7)	AP-166 (M55116/8)
Six Conductor	Five Conductor	Six Conductor
Customer Molded strain relief, crimp sleeve terminals.Datasheet	Customer Molded strain relief, solder cup terminals.Datasheet	Customer Molded strain relief, solder cup terminals.Datasheet
AP-175	AP-176	AP-186 (A3167702-2)
Shielded Five Conductor	Shielded Six Conductor	Six Conductor
Wire strain relief, solder terminals.Datasheet	Wire strain relief, solder terminals.Datasheet	Wire strain relief, solder terminals.Datasheet
Audio jacks
AJ-145	AJ-146	AJ-155
Five Contacts	Six Contacts	Five Contacts
Panel Mount with Solder Cup SpringDatasheet	Panel Mount with Solder Cup SpringDatasheet	Wire Strain Relief with Crimp Sleave SpringDatasheet
AJ-156	AJ-165	AJ-166
Six Contacts	Five Contacts	Six Contacts
Wire Strain Relief with Crimp Sleave SpringDatasheet	Wire Strain Relief with Solder Cup SpringDatasheet	Wire Strain Relief with Solder Cup SpringDatasheet