Part Details | VARIABLE ATTENUATOR
5985-00-256-8862 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).
Alternate Parts: 3656141, 365614-1, RA514TNC, 5985-00-256-8862, 00-256-8862, 5985002568862, 002568862
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
59 | MAR 24, 1971 | 00-256-8862 | 00838 ( ATTENUATOR, VARIABLE ) |
REFERENCE DRAWINGS & PICTURES
COAXIAL TYPE

Cross Reference | NSN 5985-00-256-8862
Part Number | Cage Code | Manufacturer |
---|---|---|
365614-1 | 00752 | EDO LLCDIV ANTENNA PRODUCTS |
RA514TNC | 23042 | TRILITHIC, INC. |
Technical Data | NSN 5985-00-256-8862
Characteristic | Specifications |
---|---|
APPLICATION DESIGN | TRANSMISSION LINE |
FREQUENCY RANGE | 0.000 HERTZ MINIMUM AND 1.000 GIGAHERTZ MAXIMUM |
IMPEDANCE RATING IN OHMS | 50.0 INPUT-OUTPUT |
VOLTAGE STANDING WAVE RATIO | 1.20 |
POWER RATING | 100.0 MILLIWATTS AVERAGE |
INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS | 0.3 |
OVERALL ATTENUATION RANGE IN DECIBELS | P0.0/P10.0 |
OVERALL ATTENUATION ACCURACY IN DECIBELS | M0.15/P0.15 |
ATTENUATION VARIATION METHOD | STEPPED |
STEP POSITION QUANTITY | 10 |
ATTENUATION PER STEP IN DECIBELS | 1.0 |
BODY STYLE | COAXIAL TYPE |
OVERALL LENGTH | 2.250 INCHES NOMINAL |
OVERALL HEIGHT | 2.609 INCHES MAXIMUM |
OVERALL WIDTH | 1.875 INCHES NOMINAL |
ADJUSTMENT DEVICE TYPE AND QUANTITY | 1 SHAFT |
SHAFT TYPE | ROUND |
SHAFT DIAMETER | 0.250 INCHES NOMINAL |
SHAFT LENGTH | 0.750 INCHES NOMINAL |
TERMINAL TYPE AND QUANTITY | 2 CONNECTOR, COAXIAL, FEMALE |
COAXIAL CONNECTOR SERIES DESIGNATION | TNC |
MOUNTING FACILITY TYPE AND QUANTITY | 2 THREADED HOLE |
MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR | UNC |
MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER | 0.164 INCHES |
MOUNTING THREAD QUANTITY | 32 PER INCH |
MOUNTING FACILITY PATTERN | TWO POSITION IN-LINE |
DISTANCE BETWEEN MOUNTING FACILITY CENTERS | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM |
OPERATING TEMP RANGE | +0.0 TO +70.0 DEG CELSIUS |