Part Details | DIFFERENTIAL TRANSMITTER SYNCHRO
5990-00-018-9721 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: 23TDX1229, 23TDX6, M207085501C, M20708/55-01C, M2070855001, M20708/55-001, M20708550001, M20708-550-001, MILS2070855, MIL-S-20708/55, 23TDX6C, 23TDX6B, 23TDX6, 5990-00-018-9721, 00-018-9721, 5990000189721, 000189721
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | APR 25, 1967 | 00-018-9721 | 02071 ( SYNCHRO, DIFFERENTIAL TRANSMITTER ) |
REFERENCE DRAWINGS & PICTURES
STANDARD ROUND D
Cross Reference | NSN 5990-00-018-9721
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 23TDX1229 | 14404 | AMETEK TECHNICAL & INDUSTRIALPRODUCTS, INC. |
| 23TDX6 | 10112 | GENERAL DYNAMICS GLOBAL IMAGINGTECHNOLOGIES, INC. |
| M20708/55-01C | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| M20708/55-001 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| M20708-550-001 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| MIL-S-20708/55 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| 23TDX6C | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| 23TDX6B | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| 23TDX6 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
Technical Data | NSN 5990-00-018-9721
| Characteristic | Specifications |
|---|---|
| BODY SIZE | 23 |
| STATOR INPUT VOLTAGE RATING IN VOLTS | 90.0 NOMINAL |
| STATOR INPUT CURRENT RATING | 215.0 MILLIAMPERES MAXIMUM |
| STATOR INPUT ELECTRICAL POWER RATING | 4.8 WATTS MAXIMUM |
| FREQUENCY IN HERTZ | 60.0 NOMINAL |
| ZSO IMPEDANCE MAGNITUDE IN OHMS | 370.00 MINIMUM AND 460.00 MAXIMUM |
| ZSO IMPEDANCE ANGLE IN DEG | 74.00 MINIMUM AND 78.00 MAXIMUM |
| ZRS IMPEDANCE MAGNITUDE IN OHMS | 175.00 MINIMUM AND 220.00 MAXIMUM |
| ZRS IMPEDANCE ANGLE IN DEG | 15.00 MINIMUM AND 20.00 MAXIMUM |
| TRANSFORMATION RATIO | 1.154 ROTOR TO STATOR NOMINAL |
| PHASE SHIFT ANGLE IN DEG | 11.500 INPUT TO OUTPUT NOMINAL |
| MAXIMUM TEMP RISE | 25.0 DEG CELSIUS |
| ELECTRICAL ERROR ANGULAR RANGE IN MINUTES | M6.0/P6.0 |
| ACTUATOR FRICTION TORQUE AT PLUS 25 DEG CELSIUS | 0.20 INCH-OUNCES MAXIMUM |
| TORQUE GRADIENT PER ANGULAR DEG | 0.030 INCH-OUNCES MINIMUM |
| BODY STYLE | STANDARD ROUND D |
| SHOULDER DIAMETER | 1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM |
| PILOT DIAMETER | 0.5950 INCHES NOMINAL |
| SECOND SHOULDER DIAMETER | 1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM |
| SECOND SHOULDER LENGTH | 0.1700 INCHES NOMINAL |
| OVERALL LENGTH | 4.5490 INCHES NOMINAL |
| FLANGE DIAMETER | 2.2490 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM |
| FLANGE THICKNESS | 0.2500 INCHES NOMINAL |
| BODY DIAMETER | 1.9900 INCHES MAXIMUM |
| PILOT LENGTH | 0.0430 INCHES NOMINAL |
| SHOULDER LENGTH | 0.2500 INCHES NOMINAL |
| AFT OF FIRST FLANGE DIAMETER | 1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM |
| MOUNTING SURFACE TO TERMINAL END DISTANCE | 3.8300 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 55 GOVERNMENT SPECIFICATION |
| SHAFT MAXIMUM RADIAL PLAY | 0.0010 INCHES |
| SHAFT RADIAL PLAY TEST POINT | 0.125 INCHES NOMINAL |
| SHAFT RADIAL PLAY DETERMINING WEIGHT | 8.0 OUNCES |
| SHAFT END PLAY | 0.0025 INCHES NOMINAL |
| SHAFT END PLAY DETERMINING WEIGHT | 16.0 OUNCES |
| SHAFT MAXIMUM RUNOUT | 0.0008 INCHES |