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National Stock Number:
5905-00-950-7239
Federal Supply Class:
5905
National Item Identification Number:
009507239
Description:
RESISTOR,VARIABLE,WIRE WOUND,PRE
Detail:
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.
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Manufacturer Information:
| MIL-R-8903 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | MILR8903 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | RRL16B253 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| EFFECTIVE ELECTRICAL ROTATION IN DEG ANGULAR ROTATION | 320.0 NOMINAL | | ELECTRICAL RESISTANCE PER SECTION | 25.0 KILOHMS SINGLE SECTION | | ACTUATOR TRAVEL CONTROL FEATURE | CONTINUOUS MOTION | | ACTUATOR TYPE | SINGLE SHAFT | | 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 | | BEARING TYPE | BEARING SHAFT | | BODY DIAMETER | 2.000 INCHES NOMINAL | | BODY LENGTH | 1.000 INCHES NOMINAL | | BODY STYLE | CYLINDRICAL SERVO MOUNTED | | FUNCTION CHARACTERISTIC PER SECTION | SINGLE SECTION LINEAR | | FUNCTION CONFORMITY PER SECTION | SINGLE SECTION ABSOLUTE LINEARITY | | FUNCTION CONFORMITY TOLERANCE PER SECTION | -0.50 TO 0.50 SINGLE SECTION | | LATERAL RUNOUT | 0.001 INCHES | | OVERALL DIAMETER | 2.000 INCHES NOMINAL | | OVERALL LENGTH | 1.000 INCHES NOMINAL | | MAXIMUM RUNNING TORQUE | 0.60 INCH-OUNCES | | MOUNTING LIP DEPTH | 0.0750 INCHES NOMINAL | | MOUNTING LIP DIAMETER | 2.0000 INCHES NOMINAL | | MOUNTING METHOD | CLAMP RING | | PILOT DIAMETER | 1.9370 INCHES MAXIMUM | | PILOT LENGTH | 0.0320 INCHES MAXIMUM | | PILOT DIAMETER RUNOUT | 0.001 INCHES | | POWER DISSIPATION RATING PER SECTION IN WATTS | 4.0 FREE AIR SINGLE SECTION | | RELIABILITY INDICATOR | NOT ESTABLISHED | | RESISTANCE TOLERANCE PER SECTION IN PERCENT | -1.0 TO 1.0 SINGLE SECTION | | ROTARY ACTUATOR TRAVEL IN ANGULAR DEG | 360.0 NOMINAL | | SECTION QUANTITY | 1 | | SHAFT DIAMETER | 0.250 INCHES NOMINAL | | SHAFT END PLAY | 0.006 INCHES | | SHAFT LENGTH | 0.219 INCHES NOMINAL | | SHAFT STYLE | ROUND | | TEMP COEFFICIENT OF RESISTANCE PER SECTION IN PPM PER DEG CELSIUS | -40.0 TO 40.0 SINGLE SECTION | | TERMINAL LOCATION | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE | | TERMINAL TYPE AND QUANTITY | 3 SOLDER STUD | | UNDERCUT DIAMETER | 1.9385 INCHES MAXIMUM | | UNDERCUT WIDTH | 0.0550 INCHES NOMINAL |
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