NSN 5990-00-925-6614
Part Details | DIFFERENTIAL TRANSMITTER SYNCHRO
5990-00-925-6614 A synchro, the rotor of which is mechanically positioned for modifying electrical angular information, received from a transmitter synchro and transmitting to receiver synchro or control transformer synchro electrical information corresponding to the sum or difference of the electrical input angle and its rotor position angle. Does not include variable resistors, goniometers, variable transformers, or items with dials.
Alternate Parts: 31TDX4C, 31TDX4B, M2070864001, M20708/64-001, MILS2070864, MIL-S-20708/64, 5990-00-925-6614, 00-925-6614, 5990009256614, 009256614
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
59 | FEB 02, 1966 | 00-925-6614 | 02071 ( SYNCHRO, DIFFERENTIAL TRANSMITTER ) |
REFERENCE DRAWINGS & PICTURES
STANDARD ROUND D

Cross Reference | NSN 5990-00-925-6614
Part Number | Cage Code | Manufacturer |
---|---|---|
31TDX4C | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
31TDX4B | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
M20708/64-001 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
MIL-S-20708/64 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
Technical Data | NSN 5990-00-925-6614
Characteristic | Specifications |
---|---|
BODY SIZE | 31 |
STATOR INPUT VOLTAGE RATING IN VOLTS | 90.0 NOMINAL |
STATOR INPUT CURRENT RATING | 190.0 MILLIAMPERES MAXIMUM |
STATOR INPUT ELECTRICAL POWER RATING | 10.2 WATTS MAXIMUM |
FREQUENCY IN HERTZ | 400.0 NOMINAL |
ZRS IMPEDANCE MAGNITUDE IN OHMS | 4.80 MAXIMUM |
ZRS IMPEDANCE ANGLE IN DEG | 44.00 MINIMUM |
ROTOR DC RESISTANCE IN OHMS | 1.20 MAXIMUM |
STATOR DC RESISTANCE IN OHMS | 1.00 MAXIMUM |
TRANSFORMATION RATIO | 1.154 ROTOR TO STATOR NOMINAL |
PHASE SHIFT ANGLE IN DEG | 1.500 INPUT TO OUTPUT NOMINAL |
MAXIMUM TEMP RISE | 20.0 DEG CELSIUS |
ELECTRICAL ERROR ANGULAR RANGE IN MINUTES | M8.0/P8.0 |
ACTUATOR FRICTION TORQUE AT PLUS 25 DEG CELSIUS | 0.50 INCH-OUNCES MAXIMUM |
TORQUE GRADIENT PER ANGULAR DEG | 0.600 INCH-OUNCES MINIMUM |
BODY STYLE | STANDARD ROUND D |
SHOULDER DIAMETER | 2.6950 INCHES MINIMUM AND 2.7000 INCHES MAXIMUM |
PILOT DIAMETER | 0.5000 INCHES NOMINAL |
SECOND SHOULDER DIAMETER | 2.7490 INCHES MINIMUM AND 2.7500 INCHES MAXIMUM |
SECOND SHOULDER LENGTH | 0.3750 INCHES NOMINAL |
OVERALL LENGTH | 5.3550 INCHES NOMINAL |
FLANGE DIAMETER | 3.0990 INCHES MINIMUM AND 3.1000 INCHES MAXIMUM |
FLANGE THICKNESS | 0.2500 INCHES NOMINAL |
BODY DIAMETER | 2.7000 INCHES MAXIMUM |
PILOT LENGTH | 0.0300 INCHES NOMINAL |
SHOULDER LENGTH | 0.6150 INCHES NOMINAL |
AFT OF FIRST FLANGE DIAMETER | 2.7500 INCHES MAXIMUM |
MOUNTING SURFACE TO TERMINAL END DISTANCE | 4.6250 INCHES NOMINAL |
TERMINAL TYPE AND QUANTITY | 6 SCREW |
TERMINAL LOCATION | REAR |
BODY MATERIAL | STEEL, STAINLESS |
TEST DATA DOCUMENT | 81349-MIL-S-20708 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--20708 TO 64 GOVERNMENT SPECIFICATION |
SHAFT MAXIMUM RADIAL PLAY | 0.0008 INCHES |
SHAFT RADIAL PLAY TEST POINT | 0.125 INCHES NOMINAL |
SHAFT RADIAL PLAY DETERMINING WEIGHT | 16.0 OUNCES |
SHAFT END PLAY | 0.0030 INCHES NOMINAL |
SHAFT END PLAY DETERMINING WEIGHT | 16.0 OUNCES |
SHAFT MAXIMUM RUNOUT | 0.0008 INCHES |
FRAGILITY FACTOR | MODERATELY RUGGED |