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National Stock Number:
5905-00-681-9989
Federal Supply Class:
5905
National Item Identification Number:
006819989
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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Techincal Specification:
| ELECTRICAL RESISTANCE PER SECTION | 50.000 KILOHMS SINGLE SECTION | | ACTUATOR TYPE | SINGLE SHAFT | | AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER | 25.0 SINGLE SECTION | | AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER | 85.0 SINGLE SECTION | | BODY DIAMETER | 2.000 INCHES NOMINAL | | BODY LENGTH | 0.905 INCHES NOMINAL | | BODY STYLE | CYLINDRICAL BUSHING MOUNTED | | CONTACT ARM ELECTRICAL OFF POSITION | FULLY CCW | | FUNCTION CHARACTERISTIC PER SECTION | SINGLE SECTION LINEAR | | FUNCTION CONFORMITY PER SECTION | SINGLE SECTION INDEPENDENT LINEARITY | | FUNCTION CONFORMITY TOLERANCE PER SECTION | -0.25 TO 0.25 SINGLE SECTION | | LATERAL RUNOUT | 0.004 INCHES | | MOUNTING BUSHING LENGTH | 0.375 INCHES NOMINAL | | MOUNTING METHOD | STANDARD BUSHING | | PILOT DIAMETER RUNOUT | 0.00150 INCHES | | POWER DISSIPATION RATING PER SECTION IN WATTS | 4.8 FREE AIR SINGLE SECTION | | RELIABILITY INDICATOR | NOT ESTABLISHED | | RESISTANCE TOLERANCE PER SECTION IN PERCENT | -1.0 TO 1.0 SINGLE SECTION | | SCREW THREAD DIAMETER | 0.500 INCHES NOMINAL | | SCREW THREAD QUANTITY PER INCH | 32.0 | | SCREW THREAD SERIES DESIGNATOR | UNEF | | SECTION QUANTITY | 1 | | SHAFT END PLAY | 0.00500 INCHES | | SHAFT DIAMETER | 0.249 INCHES NOMINAL | | SHAFT LENGTH | 0.495 INCHES NOMINAL | | SHAFT RADIAL PLAY | 0.00200 INCHES | | SHAFT RUNOUT | 0.001 INCHES | | SHAFT STYLE | ROUND | | TERMINAL LOCATION | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE | | TERMINAL TYPE AND QUANTITY | 3 SOLDER STUD |
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