Part Details | PRECISION WIRE WOUND VARIABLE RESISTOR
5905-00-841-1789 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: PT1216, 5905-00-841-1789, 00-841-1789, 5905008411789, 008411789
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | JAN 01, 1962 | 00-841-1789 | 37408 ( RESISTOR, VARIABLE, WIRE WOUND, PRECISION ) |
REFERENCE DRAWINGS & PICTURES
CYLINDRICAL SERVO MOUNTED
ROUND
Cross Reference | NSN 5905-00-841-1789
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| PT1216 | 80249 | BAE SYSTEMS INFORMATION ANDELECTRONIC SYSTEMS INTEGRATION INC. |
Technical Data | NSN 5905-00-841-1789
| Characteristic | Specifications |
|---|---|
| SECTION QUANTITY | 1 |
| ELECTRICAL RESISTANCE PER SECTION | 2.5 KILOHMS SINGLE SECTION |
| RESISTANCE TOLERANCE PER SECTION IN PERCENT | -1.0 TO +1.0 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 |
| MAXIMUM STARTING TORQUE | 2.00 INCH-OUNCES |
| TEMP COEFFICIENT OF RESISTANCE WIRE PER SECTION IN PPM PER DEG CELSIUS | -30.0 TO +30.0 SINGLE SECTION |
| POWER DISSIPATION RATING PER SECTION IN WATTS | 2.0 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 | 85.0 SINGLE SECTION |
| BODY STYLE | CYLINDRICAL SERVO MOUNTED |
| PILOT DIAMETER | 1.5610 INCHES MINIMUM AND 1.5620 INCHES MAXIMUM |
| PILOT LENGTH | 0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM |
| UNDERCUT DIAMETER | 1.625 INCHES MAXIMUM |
| UNDERCUT WIDTH | 0.0730 INCHES MINIMUM |
| BODY DIAMETER | 1.916 INCHES MAXIMUM |
| BODY LENGTH | 1.062 INCHES MAXIMUM |
| MOUNTING LIP DIAMETER | 1.7450 INCHES MINIMUM AND 1.7550 INCHES MAXIMUM |
| MOUNTING LIP DEPTH | 0.0880 INCHES MINIMUM AND 0.0980 INCHES MAXIMUM |
| ANGLE OF MOUNTING HOLE IN DEG | 45.0 |
| ANGLE BETWEEN CENTERLINES OF MOUNTING HOLES IN DEG | 180.0 |
| MOUNTING HOLE/STUD CIRCLE DIAMETER | 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM |
| ACTUATOR TYPE | SINGLE SHAFT |
| SHAFT STYLE | ROUND |
| SHAFT DIAMETER | 0.250 INCHES NOMINAL |
| SHAFT LENGTH | 0.721 INCHES MINIMUM AND 0.781 INCHES MAXIMUM |
| ROTARY ACTUATOR TRAVEL IN ANGULAR DEG | 360.0 NOMINAL |
| ACTUATOR TRAVEL CONTROL FEATURE | CONTINUOUS MOTION |
| EFFECTIVE ELECTRICAL ROTATION IN DEG ANGULAR ROTATION | 320.0 NOMINAL |
| MOUNTING METHOD | THREADED HOLE |
| MOUNTING FACILITY QUANTITY | 2 |
| SCREW THREAD SERIES DESIGNATOR | UNC |
| SCREW THREAD DIAMETER | 0.138 INCHES NOMINAL |
| SCREW THREAD QUANTITY PER INCH | 32.0 |
| FEATURES PROVIDED | NONMETALLIC SHAFT |
| TERMINAL TYPE AND QUANTITY | 2 SCREW |
| TERMINAL LOCATION | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE |
| RELIABILITY INDICATOR | NOT ESTABLISHED |
| OVERALL LENGTH | 1.812 INCHES NOMINAL |
| OVERALL DIAMETER | 2.203 INCHES NOMINAL |