NSN 5990-00-644-0123

Part Details | CONTROL TRANSFORMER SYNCHRO

5990-00-644-0123 A synchro consisting of a stator and rotor inductively coupled. The electrical output of the rotor is dependent upon both the position of the rotor and the electrical input to the stator from a transmitter synchro or a differential synchro. Does not include variable resistors, goniometers, or variable transformers.

Alternate Parts: MILS2070894, MIL-S-20708/94, 8212775, 23CT4A, MS510824, MS51082-4, 5990-00-644-0123, 00-644-0123, 5990006440123, 006440123

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
59JAN 01, 196300-644-012315289 ( SYNCHRO, CONTROL TRANSFORMER )
REFERENCE DRAWINGS & PICTURES

STANDARD ROUND D

Cross Reference | NSN 5990-00-644-0123
Part Number Cage Code Manufacturer
MIL-S-20708/9481349MILITARY SPECIFICATIONSPROMULGATED BY MILITARY
821277581349MILITARY SPECIFICATIONSPROMULGATED BY MILITARY
23CT4A81349MILITARY SPECIFICATIONSPROMULGATED BY MILITARY
MS51082-496906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
Technical Data | NSN 5990-00-644-0123
Characteristic Specifications
BODY SIZE23
STATOR INPUT VOLTAGE RATING IN VOLTS90.0 NOMINAL
STATOR INPUT CURRENT RATING7.7 MILLIAMPERES MAXIMUM
STATOR INPUT ELECTRICAL POWER RATING80.0 MILLIWATTS NOMINAL
FREQUENCY IN HERTZ400.0 NOMINAL
ZSO RESISTANCE IN OHMS1495.00 NOMINAL
PLUS J ZSO REACTANCE IN OHMS11870.00 NOMINAL
ZRS RESISTANCE IN OHMS675.00 NOMINAL
PLUS J ZRS REACTANCE IN OHMS741.00 NOMINAL
TRANSFORMATION RATIO0.735 ROTOR TO STATOR NOMINAL
MAXIMUM TEMP RISE45.0 DEG CELSIUS
MAXIMUM FUNDAMENTAL NULL VOLTAGE IN MILLIVOLTS PER VOLT30.00 OUTPUT
MAXIMUM TOTAL NULL VOLTAGE OUTPUT IN MILLIVOLTS PER VOLT60.00
ELECTRICAL ERROR ANGULAR RANGE IN MINUTESM6.0/P6.0
ACTUATOR FRICTION TORQUE AT MINUS 55 DEG CELSIUS0.50 INCH-OUNCES MAXIMUM
ACTUATOR FRICTION TORQUE AT PLUS 25 DEG CELSIUS0.20 INCH-OUNCES MAXIMUM
BODY STYLE STANDARD ROUND D
SHOULDER DIAMETER1.9890 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM
PILOT DIAMETER0.5900 INCHES MINIMUM AND 0.6000 INCHES MAXIMUM
SECOND SHOULDER DIAMETER1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM
SECOND SHOULDER LENGTH0.1700 INCHES NOMINAL
OVERALL LENGTH4.2430 INCHES MINIMUM AND 4.2940 INCHES MAXIMUM
FLANGE DIAMETER2.2490 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM
FLANGE THICKNESS0.2500 INCHES MAXIMUM
BODY DIAMETER1.9900 INCHES MAXIMUM
PILOT LENGTH0.0460 INCHES MAXIMUM
SHOULDER LENGTH0.2500 INCHES MAXIMUM
AFT OF FIRST FLANGE DIAMETER1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM
MOUNTING SURFACE TO TERMINAL END DISTANCE3.4350 INCHES MINIMUM AND 3.4450 INCHES MAXIMUM
TERMINAL TYPE AND QUANTITY7 SCREW
TERMINAL LOCATION REAR
BODY MATERIAL STEEL, CORROSION RESISTING
TEST DATA DOCUMENT81349-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 DATA81349-MIL--20708 TO 94 GOVERNMENT SPECIFICATION
SHAFT MAXIMUM RADIAL PLAY0.0010 INCHES
SHAFT RADIAL PLAY TEST POINT0.250 INCHES MAXIMUM
SHAFT END PLAY0.0030 INCHES NOMINAL
SHAFT MAXIMUM RUNOUT0.0015 INCHES