Part Details | PRECISION WIRE WOUND VARIABLE RESISTOR
5905-00-688-7013 A resistor in which a sliding or rolling contact moves over an exposed area of the resistive element to change the ohmic value of the output. The functional tolerance (linearity) of the output is equal to or less than plus or munus 1 percent on linear outputs. Specified outputs such as sine, cosine, tangent, etc., shall be considered to be precision. For items having manually positioned taps designed to be set and fixed prior to use, see RESISTOR, ADJUSTABLE, For items with step by step variation, see RHEOSTAT and RESISTOR, STEP BY STEP. For tandem-mounted items designed to function together as an attenuator (and rated accordingly), see ATTENUATOR, VARIABLE. Excludes RESISTOR (1), VARIABLE, NONWIRE WOUND, NONPRECISION; RESISTOR (1), VARIABLE, NONWIRE WOUND, PRECISION; and RESISTOR (1), VARIABLE, WIRE WOUND, NONPRECISION.
Alternate Parts: 121868, 121868, 5905-00-688-7013, 00-688-7013, 5905006887013, 006887013
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | JAN 01, 1961 | 00-688-7013 | 37408 ( RESISTOR, VARIABLE, WIRE WOUND, PRECISION ) |
REFERENCE DRAWINGS & PICTURES
CYLINDRICAL SERVO MOUNTED
ROUND
Cross Reference | NSN 5905-00-688-7013
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 121868 | 14945 | ASTRO ELECTRONICS INC |
| 121868 | 24930 | HARRIS CORPORATIONDBA ELECTRONIC SYSTEMS, RADAR |
Technical Data | NSN 5905-00-688-7013
| Characteristic | Specifications |
|---|---|
| SECTION QUANTITY | 3 |
| FUNCTION CONFORMITY PER SECTION | ALL SECTIONS ABSOLUTE LINEARITY |
| SHAFT RUNOUT | 0.001 INCHES |
| LATERAL RUNOUT | 0.002 INCHES |
| PILOT DIAMETER RUNOUT | 0.00100 INCHES |
| SHAFT RADIAL PLAY | 0.002 INCHES |
| MECHANICAL BACKLASH IN DEG ANGULAR ROTATION | 0.25 |
| SHAFT BEARING TYPE | BALL |
| SHAFT END PLAY | 0.00500 INCHES |
| MAXIMUM STARTING TORQUE | 8.00 INCH-OUNCES |
| MAXIMUM RUNNING TORQUE | 0.60 INCH-OUNCES |
| POWER DISSIPATION RATING PER SECTION IN WATTS | 3.0 FREE AIR ALL SECTIONS |
| AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER | 70.0 ALL SECTIONS |
| AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER | 125.0 ALL SECTIONS |
| FIXED TAP QUANTITY PER SECTION | 2 1ST SECTION |
| TAP LOCATION FROM CCW TERMINAL PER SECTION IN DEG OF EFFECTIVE ELECTRICAL ROTATION | 90.0 1ST SECTION AND 180.0 1ST SECTION AND 270.0 1ST SECTION |
| BODY STYLE | CYLINDRICAL SERVO MOUNTED |
| PILOT DIAMETER | 0.7500 INCHES NOMINAL |
| PILOT LENGTH | 0.0620 INCHES NOMINAL |
| UNDERCUT DIAMETER | 2.374 INCHES MINIMUM AND 2.375 INCHES MAXIMUM |
| UNDERCUT WIDTH | 0.0620 INCHES NOMINAL |
| BODY DIAMETER | 2.500 INCHES NOMINAL |
| BODY LENGTH | 3.437 INCHES MAXIMUM |
| MOUNTING LIP DIAMETER | 2.5000 INCHES NOMINAL |
| MOUNTING LIP DEPTH | 0.0620 INCHES NOMINAL |
| ACTUATOR TYPE | DOUBLE ENDED SHAFT |
| SHAFT STYLE | ROUND |
| SHAFT DIAMETER | 0.1871 INCHES MINIMUM AND 0.1874 INCHES MAXIMUM |
| SHAFT LENGTH | 0.688 INCHES NOMINAL |
| ROTARY ACTUATOR TRAVEL IN ANGULAR DEG | 360.0 NOMINAL |
| ACTUATOR TRAVEL CONTROL FEATURE | CONTINUOUS MOTION |
| EFFECTIVE ELECTRICAL ROTATION IN DEG ANGULAR ROTATION | 360.0 NOMINAL |
| MOUNTING METHOD | CLAMP RING |
| TERMINAL TYPE AND QUANTITY | 17 TURRET |
| TERMINAL LOCATION | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE |
| RELIABILITY INDICATOR | NOT ESTABLISHED |
| OVERALL LENGTH | 4.687 INCHES NOMINAL |