NSN 5985-00-408-5137 CN-928/TRT, CN928TRT, W164A
Product Details | VARIABLE ATTENUATOR
5985-00-408-5137 A device for reducing the strength of an alternating current signal either continuously or in steps, without causing appreciable signal distortion, by maintaining substantially constant output and/or input impedance match. Continuously variable resistive devices must consist of at least two sections or one section with at least two rotating contacts. The item must have an overall attenuation rating. Includes tandem mounted variable resistors designed to function as an attenuator but whose terminals are not connected. See also RESISTOR, VAIABLE (as modified).
Part Alternates: CN-928/TRT, CN928TRT, W164A, 5985-00-408-5137, 00-408-5137, 5985004085137, 004085137
Electrical and Electronic Equipment Components | Antennas, Waveguides, and Related Equipment
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | 15 JUL 1970 | 00-408-5137 | 00838 ( ATTENUATOR, VARIABLE ) |
Drawings & Photos | NSN 5985-00-408-5137
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Technical Data | NSN 5985-00-408-5137
| Characteristic | Specifications |
|---|---|
| APPLICATION DESIGN | WAVEGUIDE |
| FREQUENCY RANGE | 7.050 GIGAHERTZ MINIMUM AND 10.000 GIGAHERTZ MAXIMUM |
| VOLTAGE STANDING WAVE RATIO | 1.15 |
| POWER RATING | 10.0 WATTS AVERAGE |
| INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS | 0.5 |
| OVERALL ATTENUATION RANGE IN DECIBELS | 0.0 TO 50.0 |
| OVERALL ATTENUATION ACCURACY IN DECIBELS | -0.05 TO 0.05 |
| ATTENUATION VARIATION METHOD | CONTINUOUS |
| BODY STYLE | 1A WAVEGUIDE TYPE |
| OVERALL LENGTH | 3.500 INCHES NOMINAL |
| OVERALL HEIGHT | 5.750 INCHES NOMINAL |
| OVERALL WIDTH | 4.000 INCHES NOMINAL |
| ADJUSTMENT DEVICE TYPE AND QUANTITY | 1 KNOB |
| TERMINAL TYPE AND QUANTITY | 2 FLANGE |
| WAVEGUIDE FLANGE DESIGNATION | UG-138/U |
| MOUNTING FACILITY TYPE AND QUANTITY | 4 TERMINAL W/MOUNTING HOLES |
| MOUNTING FACILITY PATTERN | FOUR POSITION RECTANGULAR |
| UNTHREADED MOUNTING HOLE DIAMETER | ANY ACCEPTABLE |
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH | 0.737 INCHES NOMINAL |
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH | 0.676 INCHES NOMINAL |
| III OPERATING TEMP RANGE | -40.0 TO 55.0 DEG CELSIUS |
Restrictions/Controls & Freight Information | NSN 5985-00-408-5137
| Category | Code | Description |
|---|---|---|
| Hazardous Material Indicator Code | P | There is no information in the HMIS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Precious Metals Indicator Code: | U | Precious metal type is unknown |
| Criticality Code: | X | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||