5905-01-188-6821 RESISTOR,VARIABLE,NONWIRE WOUND,NONPRECI Index 5306-01-188-6824 BOLT,MACHINE

National Stock Number:
5905-01-188-6823

Federal Supply Class:
5905

National Item Identification Number:
011886823

Description:
RESISTOR,VARIABLE,HYBRID

Detail:
A RESISTOR IN WHICH A SLIDING OR ROLLING CONTACT MOVES OVER AN EXPOSED AREA OF THE RESISTIVE ELEMENT. UNIFORM CONTACT PRESSURE ON THE RESISTANCE ELEMENT IS MAINTAINED BY POSITIVE PRESSURE TO PERMIT SMOOTH ELECTRICAL AND MECHANICAL CONTROL OF THE RESISTOR OVER THE ENTIRE RESISTANCE RANGE. THE RESISTIVE ELEMENT IS CONSTRUCTED OF A COMBINATION OF TWO MATERIALS USUALLY CONSISTING OF A WIREWOUND ELEMENT WITH A COATING OF CONDUCTIVE PLASTIC APPLIED OVER THE RESISTANCE WIRE WHERE THE SLIDER MAKES CONTACT. MAY BE CONSTRUCTED OF A SINGLE OR MULTITURNS OF WIRE SUPPORTED ON AN INSULATING STRUCTURE ON WHICH THE WIPER CONTACTS THE COATED WIRE CONTINUOUSLY IN THE DIRECTION OF WIPER TRAVEL. THE OPPOSITION TO THE FLOW OF CURRENT IS AN INHERENT PROPERTY OF THE WIRE USED AND IS MANIFESTED IN THE HEAT DISSIPATED IN THE RESISTOR ITSELF. 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 OTHER RESISTOR (1), VARIABLE, (AS MODIFIED).


Manufacturer Information:
3750S-494-10332997BOURNS INC
3751H-424-10332997BOURNS INC
3751H-424-1033Z867BOURNS, INC.
3751H-424-1034J937BOURNS NETWORKS
805179-496214RAYTHEON COMPANY


Techincal Specification:
ACTUATOR TRAVEL CONTROL FEATURECLUTCH
ACTUATOR TYPESINGLE SHAFT
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER70.0 SINGLE SECTION
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER125.0 SINGLE SECTION
BEARING TYPEBALL SHAFT
BODY DIAMETER0.500 INCHES NOMINAL
BODY LENGTH1.431 INCHES NOMINAL
BODY STYLECYLINDRICAL SERVO MOUNTED
ELECTRICAL RESISTANCE PER SECTION10.0 KILOHMS SINGLE SECTION
FRAGILITY FACTORMODERATELY RUGGED
FUNCTION CHARACTERISTIC PER SECTIONSINGLE SECTION LINEAR
FUNCTION CONFORMITY PER SECTIONSINGLE SECTION INDEPENDENT LINEARITY
FUNCTION CONFORMITY TOLERANCE PER SECTION-0.50 TO 0.50 SINGLE SECTION
LATERAL RUNOUT0.003 INCHES
PILOT LENGTH0.0620 INCHES NOMINAL
PILOT DIAMETER RUNOUT0.002 INCHES
PILOT DIAMETER0.3750 INCHES MAXIMUM
MAXIMUM RUNNING TORQUE0.30 INCH-OUNCES
MAXIMUM STARTING TORQUE0.50 INCH-OUNCES
MOUNTING LIP DEPTH0.0620 INCHES NOMINAL
MOUNTING LIP DIAMETER0.5000 INCHES NOMINAL
MOUNTING METHODCLAMP RING
OVERALL DIAMETER0.672 INCHES NOMINAL
OVERALL LENGTH2.056 INCHES NOMINAL
POWER DISSIPATION RATING PER SECTION IN WATTS1.0 FREE AIR SINGLE SECTION
PRECIOUS MATERIAL AND LOCATIONTERMINAL SURFACES GOLD
PRECIOUS MATERIALGOLD
RELIABILITY INDICATORNOT ESTABLISHED
RESISTANCE TOLERANCE PER SECTION IN PERCENT-5.0 TO 5.0 SINGLE SECTION
ROTARY ACTUATOR TRAVEL IN ANGULAR DEG5400.0 NOMINAL
SECTION QUANTITY1
SHAFT LENGTH0.625 INCHES NOMINAL
SHAFT DIAMETER0.0935 INCHES MAXIMUM
SHAFT END PLAY0.005 INCHES
SHAFT RADIAL PLAY0.002 INCHES
SHAFT RUNOUT0.003 INCHES
SHAFT STYLEROUND, SLOTTED
TEMP COEFFICIENT OF RESISTANCE PER SECTION IN PPM PER DEG CELSIUS-50.0 TO 50.0 SINGLE SECTION
TERMINAL LOCATIONLONGITUDINALLY POSITIONED ON THE CIRCUMFERENCE
TERMINAL TYPE AND QUANTITY1 TAB, SOLDER LUG AND 2 TURRET
TEST DATA DOCUMENT96214-805179 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
UNDERCUT DIAMETER0.400 INCHES MAXIMUM
UNDERCUT WIDTH0.0620 INCHES NOMINAL


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