Part Details | PRECISION WIRE WOUND VARIABLE RESISTOR
5905-01-084-9938 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: 12001439, 1200-1439, SMA7017081, SM-A-701708-1, SMA7017081, SM-A-701708-1, SMA7017081, SM-A-701708-1, 5905-01-084-9938, 01-084-9938, 5905010849938, 010849938
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | OCT 28, 1979 | 01-084-9938 | 37408 ( RESISTOR, VARIABLE, WIRE WOUND, PRECISION ) |
REFERENCE DRAWINGS & PICTURES
CYLINDRICAL SERVO MOUNTED
ROUND, FLATTED
Cross Reference | NSN 5905-01-084-9938
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1200-1439 | 11534 | BEI SENSORS & SYSTEMS COMPANY, INC.DBA BEI DUNCAN |
| SM-A-701708-1 | 80294 | BOURNS INSTRUMENTS INC |
| SM-A-701708-1 | 96791 | BUNKER RAMO CORPAMPHENOL CONTROLS DIV |
| SM-A-701708-1 | 80063 | US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS |
Technical Data | NSN 5905-01-084-9938
| Characteristic | Specifications |
|---|---|
| SECTION QUANTITY | 1 |
| ELECTRICAL RESISTANCE PER SECTION | 200.0 OHMS SINGLE SECTION |
| RESISTANCE TOLERANCE PER SECTION IN PERCENT | -3.0 TO +3.0 SINGLE SECTION |
| FUNCTION CONFORMITY PER SECTION | SINGLE SECTION INDEPENDENT LINEARITY |
| FUNCTION CHARACTERISTIC PER SECTION | SINGLE SECTION LINEAR |
| FUNCTION CONFORMITY TOLERANCE PER SECTION | -0.50 TO +0.50 SINGLE SECTION |
| SHAFT RUNOUT | 0.002 INCHES |
| LATERAL RUNOUT | 0.002 INCHES |
| PILOT DIAMETER RUNOUT | 0.001 INCHES |
| SHAFT RADIAL PLAY | 0.002 INCHES |
| MECHANICAL BACKLASH IN DEG ANGULAR ROTATION | 0.25 |
| SHAFT END PLAY | 0.005 INCHES |
| MAXIMUM STARTING TORQUE | 0.30 INCH-OUNCES |
| MAXIMUM RUNNING TORQUE | 0.25 INCH-OUNCES |
| TEMP COEFFICIENT OF RESISTANCE PER SECTION IN PPM PER DEG CELSIUS | -50.0 TO +50.0 SINGLE SECTION |
| POWER DISSIPATION RATING PER SECTION IN WATTS | 1.25 FREE AIR SINGLE SECTION |
| AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER | 70.0 SINGLE SECTION |
| AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER | 125.0 SINGLE SECTION |
| BODY STYLE | CYLINDRICAL SERVO MOUNTED |
| PILOT DIAMETER | 0.7500 INCHES NOMINAL |
| PILOT LENGTH | 0.0620 INCHES NOMINAL |
| UNDERCUT DIAMETER | 0.781 INCHES MAXIMUM |
| UNDERCUT WIDTH | 0.0570 INCHES MINIMUM |
| BODY DIAMETER | 0.875 INCHES NOMINAL |
| BODY LENGTH | 0.812 INCHES MAXIMUM |
| MOUNTING LIP DIAMETER | 0.8750 INCHES NOMINAL |
| MOUNTING LIP DEPTH | 0.0620 INCHES NOMINAL |
| ACTUATOR TYPE | SINGLE SHAFT |
| SHAFT STYLE | ROUND, FLATTED |
| FIRST FLAT LENGTH | 0.210 INCHES NOMINAL |
| FLAT HEIGHT | 0.050 INCHES NOMINAL |
| SHAFT DIAMETER | 0.1245 INCHES MINIMUM AND 0.1248 INCHES MAXIMUM |
| SHAFT LENGTH | 1.530 INCHES NOMINAL |
| ROTARY ACTUATOR TRAVEL IN ANGULAR DEG | 360.0 NOMINAL |
| ACTUATOR TRAVEL CONTROL FEATURE | CONTINUOUS MOTION |
| EFFECTIVE ELECTRICAL ROTATION IN DEG ANGULAR ROTATION | 350.0 NOMINAL |
| MOUNTING METHOD | CLAMP RING |
| TERMINAL TYPE AND QUANTITY | 3 TURRET |
| TERMINAL LOCATION | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE |
| RELIABILITY INDICATOR | NOT ESTABLISHED |
| SPECIAL FEATURES | 0.140 IN. LG,0.115 IN. DIA UNDERCUT ON SHAFT 0.600 IN. FROM MTG SURFACE |