| DESIGN TYPE | BIDIRECTIONAL |
| FSC APPLICATION DATA | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| IDENTIFYING NUMBER | TERMINAL FITTING PART NO. UG-138/U |
| OVERALL HEIGHT | 1.875 INCHES NOMINAL |
| OVERALL LENGTH | 4.980 INCHES MINIMUM AND 5.020 INCHES MAXIMUM |
| OVERALL WIDTH | 3.245 INCHES MINIMUM AND 3.255 INCHES MAXIMUM |
| POWER LOSS IN DECIBELS | 30.0 |
| RADIO FREQUENCY RATING | 7.9 GIGAHERTZ MINIMUM AND 8.4 GIGAHERTZ MAXIMUM |
| SPECIAL FEATURES | FLANGES AND WAVEGUIDE MATERIAL ALUMINUM; CHEMICAL FILM; DIRECTIVITY 20DB MIN; 15 WATTS AVERAGE CW; WAVEGUIDE TYPE WR112 |
| TERMINAL FITTING CONTROLLING AGENCY | U.S. ARMY ELECTRONICS COMMAND |
| UNIT TYPE | COAXIAL LINE AND WAVEGUIDE |
| USAGE DESIGN | MAIN LINE TERMINAL FITTING |