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National Stock Number:
5905-00-088-2743
Federal Supply Class:
5905
National Item Identification Number:
000882743
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 | | RRL16A202 | 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 | 2.0 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 | | BODY DIAMETER | 2.000 INCHES NOMINAL | | BODY LENGTH | 1.000 INCHES NOMINAL | | BODY STYLE | CYLINDRICAL SERVO MOUNTED | | FEATURES PROVIDED | HUMIDITY PROOF | | FUNCTION CHARACTERISTIC PER SECTION | SINGLE SECTION LINEAR | | FUNCTION CONFORMITY PER SECTION | SINGLE SECTION INDEPENDENT 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 | | MAXIMUM STARTING TORQUE | 0.60 INCH-OUNCES | | MOUNTING LIP DEPTH | 0.0850 INCHES MAXIMUM | | MOUNTING LIP DIAMETER | 2.0000 INCHES NOMINAL | | MOUNTING METHOD | CLAMP RING | | PILOT DIAMETER RUNOUT | 0.001 INCHES | | PILOT DIAMETER | 1.9370 INCHES MAXIMUM | | PILOT LENGTH | 0.0320 INCHES MAXIMUM | | 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 END PLAY | 0.006 INCHES | | SHAFT BEARING TYPE | BEARING | | SHAFT DIAMETER | 0.250 INCHES MAXIMUM | | SHAFT LENGTH | 0.218 INCHES MAXIMUM | | SHAFT STYLE | ROUND | | SPECIFICATION/STANDARD DATA | 81349-MIL-R-8903 GOVERNMENT SPECIFICATION | | TEMP COEFFICIENT OF RESISTANCE PER SECTION IN PPM PER DEG CELSIUS | -30.0 TO 30.0 SINGLE SECTION | | TERMINAL LOCATION | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE | | TERMINAL TYPE AND QUANTITY | 3 TURRET | | TEST DATA DOCUMENT | 81349-MIL-R-8903 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). | | UNDERCUT DIAMETER | 1.937 INCHES MAXIMUM | | UNDERCUT WIDTH | 0.0800 INCHES NOMINAL |
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