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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:
| EFFECTIVE ELECTRICAL ROTATION IN DEG ANGULAR ROTATION | 350.0 NOMINAL | | ELECTRICAL RESISTANCE PER SECTION | 25.0 KILOHMS ALL SECTIONS | | ACTUATOR TRAVEL CONTROL FEATURE | CONTINUOUS MOTION | | ACTUATOR TYPE | SINGLE SHAFT | | 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 | | BEARING TYPE | BALL SHAFT | | BODY DIAMETER | 0.875 INCHES NOMINAL | | BODY LENGTH | 0.790 INCHES MAXIMUM | | BODY STYLE | CYLINDRICAL SERVO MOUNTED | | FEATURES PROVIDED | HUMIDITY PROOF | | FRAGILITY FACTOR | MODERATELY RUGGED | | FUNCTION CHARACTERISTIC PER SECTION | ALL SECTIONS LINEAR | | FUNCTION CONFORMITY PER SECTION | ALL SECTIONS INDEPENDENT LINEARITY | | FUNCTION CONFORMITY TOLERANCE PER SECTION | -0.50 TO 0.50 ALL SECTIONS | | LATERAL RUNOUT | 0.002 INCHES | | OVERALL DIAMETER | 1.200 INCHES MAXIMUM | | OVERALL LENGTH | 1.321 INCHES MAXIMUM | | MAXIMUM RUNNING TORQUE | 0.27 INCH-OUNCES | | MAXIMUM STARTING TORQUE | 0.27 INCH-OUNCES | | MECHANICAL BACKLASH IN DEG ANGULAR ROTATION | 0.1 | | MOUNTING LIP DEPTH | 0.0620 INCHES NOMINAL | | MOUNTING LIP DIAMETER | 0.8750 INCHES NOMINAL | | MOUNTING METHOD | CLAMP RING | | PILOT LENGTH | 0.0620 INCHES NOMINAL | | PILOT DIAMETER RUNOUT | 0.001 INCHES | | PILOT DIAMETER | 0.7500 INCHES MAXIMUM | | POWER DISSIPATION RATING PER SECTION IN WATTS | 1.0 FREE AIR ALL SECTIONS | | PRECIOUS MATERIAL | GOLD | | PRECIOUS MATERIAL AND LOCATION | TERMINAL SURFACES GOLD | | RELIABILITY INDICATOR | NOT ESTABLISHED | | RESISTANCE TOLERANCE PER SECTION IN PERCENT | -3.0 TO 3.0 ALL SECTIONS | | ROTARY ACTUATOR TRAVEL IN ANGULAR DEG | 360.0 NOMINAL | | SECTION QUANTITY | 2 | | SHAFT DIAMETER | 0.1248 INCHES MAXIMUM | | SHAFT LENGTH | 0.500 INCHES NOMINAL | | SHAFT RADIAL PLAY | 0.003 INCHES | | SHAFT RUNOUT | 0.001 INCHES | | SHAFT END PLAY | 0.005 INCHES | | SHAFT STYLE | ROUND | | TEMP COEFFICIENT OF RESISTANCE WIRE PER SECTION IN PPM PER DEG CELSIUS | -20.0 TO 20.0 ALL SECTIONS | | TERMINAL LOCATION | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE | | TERMINAL TYPE AND QUANTITY | 6 TURRET | | UNDERCUT DIAMETER | 0.780 INCHES NOMINAL | | UNDERCUT WIDTH | 0.0570 INCHES MINIMUM |
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