5905-00-778-7885 RESISTOR,VARIABLE,WIRE WOUND,PRE Index 5905-00-778-7887 RESISTOR,VARIABLE,WIRE WOUND,NON

National Stock Number:
5905-00-778-7886

Federal Supply Class:
5905

National Item Identification Number:
007787886

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.


Manufacturer Information:
171362910001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
SECTION QUANTITY1
ELECTRICAL RESISTANCE PER SECTION1.667 KILOHMS SINGLE SECTION
RESISTANCE TOLERANCE PER SECTION IN PERCENT-5.0 TO 5.0 SINGLE SECTION
FUNCTION CONFORMITY PER SECTIONSINGLE SECTION INDEPENDENT LINEARITY
FUNCTION CHARACTERISTIC PER SECTIONSINGLE SECTION LINEAR
FUNCTION CONFORMITY TOLERANCE PER SECTION-0.50 TO 0.50 SINGLE SECTION
SHAFT RUNOUT0.001 INCHES
LATERAL RUNOUT0.006 INCHES
PILOT DIAMETER RUNOUT0.00150 INCHES
SHAFT RADIAL PLAY0.002 INCHES
SHAFT BEARING TYPEBALL
SHAFT END PLAY0.00500 INCHES
MAXIMUM STARTING TORQUE1.90 INCH-OUNCES
MAXIMUM RUNNING TORQUE1.20 INCH-OUNCES
TEMP COEFFICIENT OF RESISTANCE WIRE PER SECTION IN PPM PER DEG CELSIUS-20.0 TO 20.0 SINGLE SECTION
POWER DISSIPATION RATING PER SECTION IN WATTS2.8 FREE AIR SINGLE SECTION
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER50.0 SINGLE SECTION
BODY STYLECYLINDRICAL SERVO MOUNTED
PILOT DIAMETER0.7500 INCHES MAXIMUM
PILOT LENGTH0.0620 INCHES NOMINAL
UNDERCUT DIAMETER1.875 INCHES MAXIMUM
UNDERCUT WIDTH0.0620 INCHES MINIMUM
BODY DIAMETER2.000 INCHES NOMINAL
BODY LENGTH0.969 INCHES NOMINAL
MOUNTING LIP DIAMETER1.8750 INCHES MAXIMUM
MOUNTING LIP DEPTH0.0620 INCHES NOMINAL
ANGLE OF MOUNTING HOLE IN DEG90.0
ANGLE BETWEEN CENTERLINES OF MOUNTING HOLES IN DEG120.0
MOUNTING HOLE/STUD CIRCLE DIAMETER1.250 INCHES NOMINAL
ACTUATOR TYPESINGLE SHAFT
SHAFT STYLEROUND
SHAFT DIAMETER0.2494 INCHES MINIMUM AND
0.2497 INCHES MAXIMUM
SHAFT LENGTH0.625 INCHES NOMINAL
ROTARY ACTUATOR TRAVEL IN ANGULAR DEG360.0 NOMINAL
ACTUATOR TRAVEL CONTROL FEATURECONTINUOUS MOTION
EFFECTIVE ELECTRICAL ROTATION IN DEG ANGULAR ROTATION356.0 NOMINAL
MOUNTING METHODTHREADED HOLE
MOUNTING FACILITY QUANTITY3
SCREW THREAD SERIES DESIGNATORUNC
SCREW THREAD DIAMETER0.164 INCHES NOMINAL
SCREW THREAD QUANTITY PER INCH32.0
TERMINAL TYPE AND QUANTITY3 TURRET
TERMINAL LOCATIONRADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE
RELIABILITY INDICATORNOT ESTABLISHED


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