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National Stock Number:
5905-01-038-4386
Federal Supply Class:
5905
National Item Identification Number:
010384386
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:
| 55-50-149A | 18065 | SAMARIUS PRECISION INSTRUMENTS, INC. | | 55-50-224 | 18065 | SAMARIUS PRECISION INSTRUMENTS, INC. | | FAADRV1239 | 24937 | FEDERAL AVIATION ADMINISTRATION SPECIFICATIONS PROMULGATED BY FEDERAL AVIATION ADMINISTRATION AERONAUTICAL CENTER |
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Techincal Specification:
| SECTION QUANTITY | 1 | | ELECTRICAL RESISTANCE PER SECTION | 500.000 OHMS SINGLE SECTION | | RESISTANCE TOLERANCE PER SECTION IN PERCENT | -1.0 TO 1.0 SINGLE SECTION | | FUNCTION CONFORMITY PER SECTION | SINGLE SECTION INDEPENDENT LINEARITY | | FUNCTION CHARACTERISTIC PER SECTION | SINGLE SECTION LINEAR | | FUNCTION CONFORMITY TOLERANCE PER SECTION | -0.50 TO 0.50 SINGLE SECTION | | SHAFT RUNOUT | 0.002 INCHES | | LATERAL RUNOUT | 0.002 INCHES | | SHAFT RADIAL PLAY | 0.001 INCHES | | SHAFT BEARING TYPE | SLEEVE | | SHAFT END PLAY | 0.00100 INCHES | | MAXIMUM STARTING TORQUE | 2.00 INCH-OUNCES | | MAXIMUM RUNNING TORQUE | 1.40 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 WATTS | 1.0 FREE AIR SINGLE SECTION | | AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER | 50.0 SINGLE SECTION | | AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER | 125.0 SINGLE SECTION | | BODY STYLE | CYLINDRICAL BUSHING MOUNTED | | BODY DIAMETER | 0.875 INCHES NOMINAL | | BODY LENGTH | 0.687 INCHES NOMINAL | | MOUNTING BUSHING LENGTH | 0.500 INCHES NOMINAL | | ACTUATOR TYPE | SINGLE SHAFT | | SHAFT STYLE | ROUND | | SHAFT DIAMETER | 0.2494 INCHES MINIMUM AND | | 0.2500 INCHES MAXIMUM | | SHAFT LENGTH | 0.438 INCHES NOMINAL | | ROTARY ACTUATOR TRAVEL IN ANGULAR DEG | 338.00 MINIMUM AND | | 342.0 MAXIMUM | | ACTUATOR TRAVEL CONTROL FEATURE | STOPS | | EFFECTIVE ELECTRICAL ROTATION IN DEG ANGULAR ROTATION | 338.0 MINIMUM AND | | 342.0 MAXIMUM | | MOUNTING METHOD | STANDARD BUSHING | | SCREW THREAD SERIES DESIGNATOR | UNEF | | SCREW THREAD DIAMETER | 0.375 INCHES NOMINAL | | SCREW THREAD QUANTITY PER INCH | 32.0 | | TERMINAL TYPE AND QUANTITY | 3 TURRET | | TERMINAL LOCATION | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE | | RELIABILITY INDICATOR | NOT ESTABLISHED | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 24937 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FAADRV1239 |
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