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National Stock Number:
5905-01-149-6939
Federal Supply Class:
5905
National Item Identification Number:
011496939
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:
| 3111 | 22978 | MEASUREMENT SYSTEMS INC | | 503111 | 22978 | MEASUREMENT SYSTEMS INC | | 6530S-428-253/253 | 32997 | BOURNS INC |
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Techincal Specification:
| SECTION QUANTITY | 2 | | ELECTRICAL RESISTANCE PER SECTION | 25.0 KILOHMS ALL SECTIONS | | RESISTANCE TOLERANCE PER SECTION IN PERCENT | -3.0 TO 3.0 ALL SECTIONS | | FUNCTION CONFORMITY PER SECTION | ALL SECTIONS INDEPENDENT LINEARITY | | FUNCTION CHARACTERISTIC PER SECTION | ALL SECTIONS LINEAR | | FUNCTION CONFORMITY TOLERANCE PER SECTION | -0.50 TO 0.50 ALL SECTIONS | | SHAFT RUNOUT | 0.001 INCHES | | LATERAL RUNOUT | 0.002 INCHES | | PILOT DIAMETER RUNOUT | 0.001 INCHES | | SHAFT RADIAL PLAY | 0.003 INCHES | | MECHANICAL BACKLASH IN DEG ANGULAR ROTATION | 0.1 | | SHAFT BEARING TYPE | BALL | | SHAFT END PLAY | 0.005 INCHES | | MAXIMUM STARTING TORQUE | 0.27 INCH-OUNCES | | MAXIMUM RUNNING TORQUE | 0.27 INCH-OUNCES | | TEMP COEFFICIENT OF RESISTANCE WIRE PER SECTION IN PPM PER DEG CELSIUS | -20.0 TO 20.0 ALL SECTIONS | | POWER DISSIPATION RATING PER SECTION IN WATTS | 1.0 FREE AIR ALL SECTIONS | | AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER | 70.0 ALL SECTIONS | | AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER | 125.0 ALL SECTIONS | | BODY STYLE | CYLINDRICAL SERVO MOUNTED | | PILOT DIAMETER | 0.7500 INCHES MAXIMUM | | PILOT LENGTH | 0.0620 INCHES NOMINAL | | UNDERCUT DIAMETER | 0.780 INCHES NOMINAL | | UNDERCUT WIDTH | 0.0570 INCHES MINIMUM | | BODY DIAMETER | 0.875 INCHES NOMINAL | | BODY LENGTH | 0.790 INCHES MAXIMUM | | MOUNTING LIP DIAMETER | 0.8750 INCHES NOMINAL | | MOUNTING LIP DEPTH | 0.0620 INCHES NOMINAL | | ACTUATOR TYPE | SINGLE SHAFT | | SHAFT STYLE | ROUND | | SHAFT DIAMETER | 0.1248 INCHES MAXIMUM | | SHAFT LENGTH | 0.500 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 | | FEATURES PROVIDED | HUMIDITY PROOF | | TERMINAL TYPE AND QUANTITY | 6 TURRET | | TERMINAL LOCATION | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE | | RELIABILITY INDICATOR | NOT ESTABLISHED | | OVERALL LENGTH | 1.321 INCHES MAXIMUM | | OVERALL DIAMETER | 1.200 INCHES MAXIMUM | | FRAGILITY FACTOR | MODERATELY RUGGED | | PRECIOUS MATERIAL | GOLD | | PRECIOUS MATERIAL AND LOCATION | TERMINAL SURFACES GOLD |
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