| EARPHONE ELEMENT TYPE | DYNAMIC |
| EARPHONE QUANTITY | 2 |
| EARPHONE IMPEDANCE RATING | 19.0 OHMS NOMINAL |
| EARPHONE IDENTIFYING NUMBER | H-143/AIC TYPE NO. |
| MICROPHONE ELEMENT TYPE | DYNAMIC |
| EARPHONE CONTROLLING AGENCY | JETDS |
| IMPEDANCE RATING | 3.5 OHMS NOMINAL |
| FREQUENCY RATING | 0.2 KILOHERTZ MINIMUM AND |
| 5.0 KILOHERTZ MAXIMUM |
| OUTPUT LEVEL RATING | 2 UV PER DYNE PER SQ CM IN. 5 OHMS LOAD |
| CONTROLLING AGENCY | JETDS |
| IDENTIFYING NUMBER | M-87/AIC TYPE NO. |
| EARPHONE MOUNTING METHOD | SUSPENDED ON HEADBAND |
| MICROPHONE MOUNTING FACILITY | BRACKET FASTENED TO HEADBAND |
| CONNECTOR CONTROLLING AGENCY | JETDS |
| CONNECTOR NAME | TELEPHONE PLUG |
| CONNECTOR IDENTIFYING NUMBER | U-174/U TYPE NO. |
| CONNECTOR TO JUNCTION CORD LENGTH | 1.959 FEET |
| SPECIAL FEATURES | HEADBAND TYPE HEADSET WITH 2 H-143/AIC EARPHONE ELEMENTS,A DYNAMIC,NOISE CANCELLING M-87/AIC MICROPHONE,AN MT-2007/AIC BRACKET,AND A CORD ASSEMBLY |
| NONDEFINITIVE SPEC/STD DATA | H-157A/AIC TYPE |
| CRITICALITY CODE JUSTIFICATION | FEAT |
| FSC APPLICATION DATA | HEADSETS,HANDSETS,MICROPHONES AND SPEAKERS |
| SPEC/STD CONTROLLING DATA | |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | H-157A/AIC |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-DTL-83511/2 |