Part Details | PRECISION WIRE WOUND VARIABLE RESISTOR
5905-00-578-4785 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: 74720000, 747-20000, 889077, 5905-00-578-4785, 00-578-4785, 5905005784785, 005784785
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | JAN 01, 1963 | 00-578-4785 | 37408 ( RESISTOR, VARIABLE, WIRE WOUND, PRECISION ) |
REFERENCE DRAWINGS & PICTURES
CYLINDRICAL SERVO MOUNTED
ROUND, SLOTTED
Cross Reference | NSN 5905-00-578-4785
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 747-20000 | 72314 | BAE SYSTEMS INFORMATION ANDELECTRONIC SYSTEMS INTEGRATION I |
| 889077 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 5905-00-578-4785
| Characteristic | Specifications |
|---|---|
| SECTION QUANTITY | 1 |
| ELECTRICAL RESISTANCE PER SECTION | 20.0 OHMS SINGLE SECTION |
| RESISTANCE TOLERANCE PER SECTION IN PERCENT | -5.0 TO +5.0 SINGLE SECTION |
| FUNCTION CONFORMITY PER SECTION | SINGLE SECTION INDEPENDENT LINEARITY |
| FUNCTION CHARACTERISTIC PER SECTION | SINGLE SECTION LINEAR |
| FUNCTION CONFORMITY TOLERANCE PER SECTION | -0.15 TO +0.15 SINGLE SECTION |
| PILOT DIAMETER RUNOUT | 0.00250 INCHES |
| SHAFT RADIAL PLAY | 0.001 INCHES |
| MAXIMUM STARTING TORQUE | 1.00 INCH-OUNCES |
| MAXIMUM RUNNING TORQUE | 0.75 INCH-OUNCES |
| POWER DISSIPATION RATING PER SECTION IN WATTS | 4.0 FREE AIR SINGLE SECTION |
| AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER | 40.0 SINGLE SECTION |
| AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER | 105.0 SINGLE SECTION |
| FIXED TAP QUANTITY PER SECTION | 2 SINGLE SECTION |
| TAP LOCATION FROM CCW TERMINAL PER SECTION IN OHMS | 2904.0 SINGLE SECTION AND 3871.0 SINGLE SECTION |
| BODY STYLE | CYLINDRICAL SERVO MOUNTED |
| PILOT DIAMETER | 0.7500 INCHES MINIMUM AND 0.7505 INCHES MAXIMUM |
| PILOT LENGTH | 0.0610 INCHES NOMINAL |
| UNDERCUT DIAMETER | 2.08300 INCHES MAXIMUM |
| UNDERCUT WIDTH | 0.0610 INCHES NOMINAL |
| BODY DIAMETER | 2.093 INCHES MAXIMUM |
| BODY LENGTH | 1.156 INCHES MAXIMUM |
| MOUNTING LIP DIAMETER | 2.0830 INCHES MAXIMUM |
| MOUNTING LIP DEPTH | 0.0610 INCHES NOMINAL |
| ANGLE OF MOUNTING HOLE IN DEG | 23.0 |
| ANGLE BETWEEN CENTERLINES OF MOUNTING HOLES IN DEG | 120.0 |
| MOUNTING HOLE/STUD CIRCLE DIAMETER | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM |
| ACTUATOR TYPE | SINGLE SHAFT |
| SHAFT STYLE | ROUND, SLOTTED |
| SHAFT DIAMETER | 0.250 INCHES NOMINAL |
| SHAFT LENGTH | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM |
| ROTARY ACTUATOR TRAVEL IN ANGULAR DEG | 360.0 NOMINAL |
| ACTUATOR TRAVEL CONTROL FEATURE | CONTINUOUS MOTION |
| EFFECTIVE ELECTRICAL ROTATION IN DEG ANGULAR ROTATION | 351.3 NOMINAL |
| MOUNTING METHOD | THREADED HOLE |
| MOUNTING FACILITY QUANTITY | 3 |
| SCREW THREAD SERIES DESIGNATOR | UNC |
| SCREW THREAD DIAMETER | 0.164 INCHES NOMINAL |
| SCREW THREAD QUANTITY PER INCH | 32.0 |
| FEATURES PROVIDED | NONMETALLIC SHAFT |
| TERMINAL TYPE AND QUANTITY | 5 TURRET |
| TERMINAL LOCATION | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE |
| RELIABILITY INDICATOR | NOT ESTABLISHED |