NSN 5905-00-138-4240
Part Details | NONPRECISION NONWIRE WOUND VARIABLE RESISTOR
5905-00-138-4240 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), if given, of the output is greater than plus or minus 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, WIRE WOUND, NONPRECISION; RESISTOR (1), VARIABLE, NONWIRE WOUND PRECISION; and RESISTOR (1), VARIABLE, WIRE WOUND, PRECISION.
Alternate Parts: 9381890001, 938-189-0001, 9381890001, 938-189-0001, 5905-00-138-4240, 00-138-4240, 5905001384240, 001384240
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | JUL 28, 1971 | 00-138-4240 | 37405 ( RESISTOR, VARIABLE, NONWIRE WOUND, NONPRECISION ) |
REFERENCE DRAWINGS & PICTURES
CYLINDRICAL BUSHING MOUNTED
ROUND, FLATTED
Cross Reference | NSN 5905-00-138-4240
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 938-189-0001 | 25413 | ES BETA, INC. |
| 938-189-0001 | 95542 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
Technical Data | NSN 5905-00-138-4240
| Characteristic | Specifications |
|---|---|
| SECTION QUANTITY | 1 |
| ELECTRICAL RESISTANCE PER SECTION | 5.000 MEGOHMS SINGLE SECTION |
| RESISTANCE TOLERANCE PER SECTION IN PERCENT | -20.0 TO +20.0 SINGLE SECTION |
| SHAFT RUNOUT | 0.005 INCHES |
| SHAFT RADIAL PLAY | 0.001 INCHES |
| MECHANICAL BACKLASH IN DEG ANGULAR ROTATION | 6.0 |
| SHAFT END PLAY | 0.00300 INCHES |
| MAXIMUM STARTING TORQUE | 8.00 INCH-OUNCES |
| TEMP COEFFICIENT OF RESISTANCE PER SECTION IN PPM PER DEG CELSIUS | -250.0 TO +250.0 SINGLE SECTION |
| POWER DISSIPATION RATING PER SECTION IN WATTS | 1.5 FREE AIR SINGLE SECTION |
| AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER | 40.0 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 | 1.062 INCHES NOMINAL |
| BODY LENGTH | 1.875 INCHES NOMINAL |
| MOUNTING BUSHING LENGTH | 0.375 INCHES NOMINAL |
| ACTUATOR TYPE | DUAL CONCENTRIC |
| SHAFT STYLE | ROUND, FLATTED |
| FIRST FLAT LENGTH | 0.437 INCHES NOMINAL |
| FLAT HEIGHT | 0.214 INCHES NOMINAL |
| SHAFT DIAMETER | 0.250 INCHES NOMINAL |
| SHAFT LENGTH | 1.125 INCHES NOMINAL |
| ROTARY ACTUATOR TRAVEL IN ANGULAR DEG | 320.0 NOMINAL |
| ACTUATOR TRAVEL CONTROL FEATURE | STOPS |
| EFFECTIVE ELECTRICAL ROTATION IN DEG ANGULAR ROTATION | 320.0 NOMINAL |
| NONTURN DEVICE LOCATION | AT 9 OCLOCK |
| NONTURN DEVICE RADIUS | 0.437 INCHES NOMINAL |
| MOUNTING METHOD | STANDARD BUSHING |
| SCREW THREAD SERIES DESIGNATOR | UNEF |
| SCREW THREAD DIAMETER | 0.375 INCHES NOMINAL |
| SCREW THREAD QUANTITY PER INCH | 32.0 |
| FEATURES PROVIDED | SWITCH |
| SWITCH TYPE | ROTARY |
| SWITCH OPERATING POSITION | START OF ROTATION |
| SWITCH CONTACT ARRANGEMENT | SINGLE POLE, DOUBLE THROW, THREE POSITIONS MAINTAINED |
| SWITCH CURRENT TYPE AND RATING IN AMPS | 2.000 AC/DC |
| SWITCH VOLTAGE RATING IN VOLTS | 115.0 |
| TERMINAL TYPE AND QUANTITY | 3 TAB, SOLDER LUG AND 3 TURRET |
| TERMINAL LOCATION | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE |
| SPECIAL FEATURES | SECOND SHAFT 0.125 IN. NOM DIA,1.563 IN. NOM LG,0.312 IN. NOM FLAT LG,0.094 IN. NOM FLAT H |
| OVERALL LENGTH | 3.438 INCHES NOMINAL |
| OVERALL DIAMETER | 1.374 INCHES NOMINAL |