Part Details | PRECISION WIRE WOUND VARIABLE RESISTOR
5905-00-926-8687 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: 2RR2001, MILR1293422, MILR12934-22, 5905-00-926-8687, 00-926-8687, 5905009268687, 009268687
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | OCT 25, 1967 | 00-926-8687 | 37408 ( RESISTOR, VARIABLE, WIRE WOUND, PRECISION ) |
REFERENCE DRAWINGS & PICTURES
CYLINDRICAL SERVO MOUNTED
ROUND, SLOTTED
Cross Reference | NSN 5905-00-926-8687
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 2RR2001 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| MILR12934-22 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
Technical Data | NSN 5905-00-926-8687
| Characteristic | Specifications |
|---|---|
| SECTION QUANTITY | 2 |
| RESISTANCE TOLERANCE PER SECTION IN PERCENT | -5.0 TO +5.0 ALL SECTIONS |
| FUNCTION CONFORMITY PER SECTION | ALL SECTIONS INDEPENDENT LINEARITY |
| FUNCTION CHARACTERISTIC PER SECTION | ALL SECTIONS LINEAR |
| SHAFT RUNOUT | 0.001 INCHES |
| LATERAL RUNOUT | 0.002 INCHES |
| PILOT DIAMETER RUNOUT | 0.001 INCHES |
| SHAFT RADIAL PLAY | 0.002 INCHES |
| MECHANICAL BACKLASH IN DEG ANGULAR ROTATION | 0.1 |
| SHAFT END PLAY | 0.005 INCHES |
| MAXIMUM STARTING TORQUE | 1.00 INCH-OUNCES |
| MAXIMUM RUNNING TORQUE | 1.00 INCH-OUNCES |
| TEMP COEFFICIENT OF RESISTANCE PER SECTION IN PPM PER DEG CELSIUS | -30.0 TO +30.0 ALL SECTIONS |
| AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER | 85.0 ALL SECTIONS |
| AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER | 150.0 ALL SECTIONS |
| BODY STYLE | CYLINDRICAL SERVO MOUNTED |
| PILOT DIAMETER | 0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM |
| PILOT LENGTH | 0.0600 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM |
| UNDERCUT DIAMETER | 1.875 INCHES MAXIMUM |
| UNDERCUT WIDTH | 0.0780 INCHES NOMINAL |
| BODY DIAMETER | 2.000 INCHES NOMINAL |
| BODY LENGTH | 2.312 INCHES MAXIMUM |
| MOUNTING LIP DIAMETER | 2.0000 INCHES NOMINAL |
| MOUNTING LIP DEPTH | 0.0930 INCHES NOMINAL |
| ANGLE OF MOUNTING HOLE IN DEG | 30.0 |
| ANGLE BETWEEN CENTERLINES OF MOUNTING HOLES IN DEG | 120.0 |
| MOUNTING HOLE/STUD CIRCLE DIAMETER | 1.250 INCHES NOMINAL |
| ACTUATOR TYPE | SINGLE SHAFT |
| SHAFT STYLE | ROUND, SLOTTED |
| SHAFT DIAMETER | 0.2495 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM |
| SHAFT LENGTH | 0.750 INCHES NOMINAL |
| ROTARY ACTUATOR TRAVEL IN ANGULAR DEG | 360.0 NOMINAL |
| ACTUATOR TRAVEL CONTROL FEATURE | CONTINUOUS MOTION |
| EFFECTIVE ELECTRICAL ROTATION IN DEG ANGULAR ROTATION | 308.5 MINIMUM AND 330.0 MAXIMUM |
| MOUNTING METHOD | THREADED HOLE |
| MOUNTING FACILITY QUANTITY | 3 |
| SCREW THREAD SERIES DESIGNATOR | UNC |
| SCREW THREAD DIAMETER | 0.164 INCHES NOMINAL |
| SCREW THREAD QUANTITY PER INCH | 32.0 |
| TERMINAL TYPE AND QUANTITY | 6 TURRET |
| TERMINAL LOCATION | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE |
| RELIABILITY INDICATOR | NOT ESTABLISHED |
| TEST DATA DOCUMENT | 81349-MIL-R-12934 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.). |
| SPECIFICATION/STANDARD DATA | 81349-MIL-R-12934 TO 22 GOVERNMENT SPECIFICATION |
| OVERALL LENGTH | 3.067 INCHES MAXIMUM |
| OVERALL DIAMETER | 2.200 INCHES NOMINAL |