NSN 5905-00-938-7291

Part Details | PRECISION WIRE WOUND VARIABLE RESISTOR

5905-00-938-7291 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.

Alternate Parts: WP78 1852, WP7-8 185-2, WP781852, WP7-8-185-2, WP78 1852, WP7-8 185-2, F01311016, 14W12842, 14W1-2842, 6590102020102, 65901-02020-102, 5905-00-938-7291, 00-938-7291, 5905009387291, 009387291

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
59MAR 23, 196700-938-729137408 ( RESISTOR, VARIABLE, WIRE WOUND, PRECISION )
REFERENCE DRAWINGS & PICTURES

CYLINDRICAL SERVO MOUNTED

ROUND

Cross Reference | NSN 5905-00-938-7291
Part Number Cage Code Manufacturer
WP7-8 185-206880DATA INSTRUMENTS INC
WP7-8-185-294603HONEYWELL SENSING & CONTROL
WP7-8 185-294603HONEYWELL SENSING & CONTROL
F0131101694603HONEYWELL SENSING & CONTROL
14W1-284219176SERVO INSTRUMENT CORPORATION
65901-02020-10278286SIKORSKY AIRCRAFT CORPORATIONDBA SIKORSKY
Technical Data | NSN 5905-00-938-7291
Characteristic Specifications
SECTION QUANTITY1
ELECTRICAL RESISTANCE PER SECTION2.0 KILOHMS SINGLE SECTION
RESISTANCE TOLERANCE PER SECTION IN PERCENT-5.0 TO +5.0 SINGLE SECTION
FUNCTION CONFORMITY PER SECTION SINGLE SECTION INDEPENDENT LINEARITY
FUNCTION CHARACTERISTIC PER SECTION SINGLE SECTION LINEAR
FUNCTION CONFORMITY TOLERANCE PER SECTION-1.00 TO +1.00 SINGLE SECTION
SHAFT RUNOUT0.002 INCHES
LATERAL RUNOUT0.002 INCHES
PILOT DIAMETER RUNOUT0.001 INCHES
SHAFT RADIAL PLAY0.001 INCHES
SHAFT BEARING TYPE BALL
SHAFT END PLAY0.005 INCHES
MAXIMUM STARTING TORQUE0.50 INCH-OUNCES
MAXIMUM RUNNING TORQUE0.50 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 WATTS3.0 FREE AIR SINGLE SECTION
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER60.0 SINGLE SECTION
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER125.0 SINGLE SECTION
BODY STYLE CYLINDRICAL SERVO MOUNTED
PILOT DIAMETER0.7500 INCHES NOMINAL
PILOT LENGTH0.0620 INCHES NOMINAL
UNDERCUT DIAMETER0.781 INCHES NOMINAL
UNDERCUT WIDTH0.0620 INCHES NOMINAL
BODY DIAMETER0.875 INCHES NOMINAL
BODY LENGTH0.625 INCHES NOMINAL
MOUNTING LIP DIAMETER0.7810 INCHES NOMINAL
MOUNTING LIP DEPTH0.0620 INCHES NOMINAL
ACTUATOR TYPE SINGLE SHAFT
SHAFT STYLE ROUND
SHAFT DIAMETER0.125 INCHES NOMINAL
SHAFT LENGTH0.437 INCHES NOMINAL
ROTARY ACTUATOR TRAVEL IN ANGULAR DEG360.0 NOMINAL
ACTUATOR TRAVEL CONTROL FEATURE CONTINUOUS MOTION
EFFECTIVE ELECTRICAL ROTATION IN DEG ANGULAR ROTATION320.0 NOMINAL
MOUNTING METHOD CLAMP RING
FEATURES PROVIDED NONMETALLIC SHAFT
TERMINAL TYPE AND QUANTITY3 SOLDER STUD
TERMINAL LOCATION LONGITUDINALLY POSITIONED ON THE CIRCUMFERENCE
RELIABILITY INDICATOR NOT ESTABLISHED
TEST DATA DOCUMENT78286-65901-02020-102 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.).