Part Details | VARIABLE ATTENUATOR
5985-00-153-0119 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: SMB650998, SM-B-650998, SMB650998, SM-B-650998, 5985-00-153-0119, 00-153-0119, 5985001530119, 001530119
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
59 | OCT 18, 1971 | 00-153-0119 | 00838 ( ATTENUATOR, VARIABLE ) |
REFERENCE DRAWINGS & PICTURES
COAXIAL TYPE

Cross Reference | NSN 5985-00-153-0119
Part Number | Cage Code | Manufacturer |
---|---|---|
SM-B-650998 | 12457 | MERRIMAC INDUSTRIES, INC. |
SM-B-650998 | 80063 | US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS |
Technical Data | NSN 5985-00-153-0119
Characteristic | Specifications |
---|---|
APPLICATION DESIGN | TRANSMISSION LINE |
FREQUENCY RANGE | 4.400 GIGAHERTZ MINIMUM AND 5.000 GIGAHERTZ MAXIMUM |
IMPEDANCE RATING IN OHMS | 50.0 INPUT-OUTPUT |
VOLTAGE STANDING WAVE RATIO | 1.50 |
POWER RATING | 4.0 WATTS AVERAGE |
INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS | 0.5 |
OVERALL ATTENUATION RANGE IN DECIBELS | P0.0/P30.0 |
OVERALL ATTENUATION ACCURACY IN DECIBELS | M1.00/P1.00 |
ATTENUATION VARIATION METHOD | CONTINUOUS |
BODY STYLE | COAXIAL TYPE |
OVERALL LENGTH | 4.250 INCHES MAXIMUM |
OVERALL HEIGHT | 1.000 INCHES NOMINAL |
OVERALL WIDTH | 3.850 INCHES NOMINAL |
ADJUSTMENT DEVICE TYPE AND QUANTITY | 1 SHAFT |
SHAFT TYPE | ROUND, SLOTTED |
SHAFT DIAMETER | 0.250 INCHES NOMINAL |
SHAFT LENGTH | 1.730 INCHES NOMINAL |
TERMINAL TYPE AND QUANTITY | 1 CONNECTOR, COAXIAL, FEMALE AND 1 CONNECTOR, COAXIAL, MALE |
COAXIAL CONNECTOR SERIES DESIGNATION | N |
MOUNTING FACILITY TYPE AND QUANTITY | 4 THREADED HOLE |
MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR | UNC |
MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER | 0.138 INCHES |
MOUNTING THREAD QUANTITY | 32 PER INCH |
MOUNTING FACILITY PATTERN | FOUR POSITION RECTANGULAR |
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH | 1.250 INCHES NOMINAL |
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH | 1.812 INCHES NOMINAL |
PRECIOUS MATERIAL | RHODIUM AND SILVER |
PRECIOUS MATERIAL AND LOCATION | TERMINALS RHODIUM AND TERMINALS SILVER |