| Item Name | Synchro Differentia |
| Federal Supply Group (FSG) | Electrical and Electronic Equipment Components |
| Federal Supply Class (FSC) | 5990 Synchros and Resolvers |
| National Item Identification Number (NIIN) | 00-925-6614 (009256614) |
| NCB Code | USA (00) |
| Manufacturer | Military Specifications |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 31TDX4B | military specifications | synchro differentia | 81349 | RFQ |
| 31TDX4C | military specifications | synchro differentia | 81349 | RFQ |
| M20708/64-001 | military specifications | synchro differentia | 81349 | RFQ |
| MIL-S-20708/64 | military specifications | synchro differentia | 81349 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAQL | BODY STYLE | STANDARD ROUND D |
| AAVH | SHOULDER DIAMETER | 2.6950 INCHES MINIMUM AND 2.7000 INCHES MAXIMUM |
| AAVL | PILOT DIAMETER | 0.5000 INCHES NOMINAL |
| AAZW | SECOND SHOULDER DIAMETER | 2.7490 INCHES MINIMUM AND 2.7500 INCHES MAXIMUM |
| AAZX | SECOND SHOULDER LENGTH | 0.3750 INCHES NOMINAL |
| ABHP | OVERALL LENGTH | 5.3550 INCHES NOMINAL |
| ABKK | FLANGE DIAMETER | 3.0990 INCHES MINIMUM AND 3.1000 INCHES MAXIMUM |
| ABKU | FLANGE THICKNESS | 0.2500 INCHES NOMINAL |
| ABPM | BODY DIAMETER | 2.7000 INCHES MAXIMUM |
| ABWV | SHAFT DIAMETER | 0.2403 INCHES MINIMUM AND 0.2405 INCHES MAXIMUM SINGLE SHAFT |
| ABXF | SHAFT LENGTH | 0.7300 INCHES NOMINAL SINGLE SHAFT |
| AFJN | FRAGILITY FACTOR | MODERATELY RUGGED |
| AHCG | MAXIMUM TEMP RISE | 20.0 DEG CELSIUS |
| AJSL | BODY SIZE | 31 |
| AJSN | STATOR INPUT VOLTAGE RATING IN VOLTS | 90.0 NOMINAL |
| AJSP | STATOR INPUT CURRENT RATING | 190.0 MILLIAMPERES MAXIMUM |
| AJSQ | STATOR INPUT ELECTRICAL POWER RATING | 10.2 WATTS MAXIMUM |
| AJSS | FREQUENCY IN HERTZ | 400.0 NOMINAL |
| AJTL | ZRS IMPEDANCE MAGNITUDE IN OHMS | 4.80 MAXIMUM |
| AJTM | ZRS IMPEDANCE ANGLE IN DEG | 44.00 MINIMUM |
| AJTS | ROTOR DC RESISTANCE IN OHMS | 1.20 MAXIMUM |
| AJTT | STATOR DC RESISTANCE IN OHMS | 1.00 MAXIMUM |
| AJVF | PHASE SHIFT ANGLE IN DEG | 1.500 INPUT TO OUTPUT NOMINAL |
| AJVL | ELECTRICAL ERROR ANGULAR RANGE IN MINUTES | -8.0 TO 8.0 |
| AJVM | SPLINE TOOTH QUANTITY | 22 SINGLE SHAFT |
| AJVT | ACTUATOR FRICTION TORQUE AT PLUS 25 DEG CELSIUS | 0.50 INCH-OUNCES MAXIMUM |
| AJVV | TORQUE GRADIENT PER ANGULAR DEG | 0.600 INCH-OUNCES MINIMUM |
| AJWG | SHAFT MAXIMUM RADIAL PLAY | 0.0008 INCHES |
| AJWH | SHAFT END PLAY | 0.0030 INCHES NOMINAL |
| AJWQ | PILOT LENGTH | 0.0300 INCHES NOMINAL |
| AJWR | SHOULDER LENGTH | 0.6150 INCHES NOMINAL |
| AJWV | AFT OF FIRST FLANGE DIAMETER | 2.7500 INCHES MAXIMUM |
| AJWX | MOUNTING SURFACE TO TERMINAL END DISTANCE | 4.6250 INCHES NOMINAL |
| AJXA | SPLINE TOOTH DIAMETRAL PITCH | 96 SINGLE SHAFT |
| AJXB | SHAFT MAXIMUM RUNOUT | 0.0008 INCHES |
| AJYY | SHAFT THREAD SERIES DESIGNATOR | UNF SINGLE SHAFT |
| AKAF | SHAFT THREAD DIRECTION | RIGHT-HAND SINGLE SHAFT |
| AKAN | SHAFT THREAD CLASS | 2A SINGLE SHAFT |
| CQRG | BODY MATERIAL | STEEL CORROSION RESISTING |
| CQTM | TERMINAL LOCATION | REAR |
| CQWQ | SHAFT THREAD LENGTH | 0.3640 INCHES NOMINAL SINGLE SHAFT |
| CRSJ | SHAFT TYPE | SPLINE W/THREADS SINGLE SHAFT |
| CSJY | TRANSFORMATION RATIO | 1.154 ROTOR TO STATOR NOMINAL |
| CWBH | SHAFT NOMINAL THREAD SIZE | 0.2500 INCHES SINGLE SHAFT |
| CWXK | SHAFT RADIAL PLAY DETERMINING WEIGHT | 16.0 OUNCES |
| CWYF | SHAFT END PLAY DETERMINING WEIGHT | 16.0 OUNCES |
| FEAT | SPECIAL FEATURES | SHAFT RADIAL PLAY TEST POINT JAC0.125 |
| TEST | 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,REFLECTI |
| TTQY | TERMINAL TYPE AND QUANTITY | 6 SCREW |
| ZZZK | SPECIFICATION/STANDARD DATA | 81349-MIL-S-20708/64 GOVERNMENT SPECIFICATION |
| Relevant Components for NSN - 5990-00-925-6614, 5990009256614 | ||||
| 5945-00-890-8228 (5945008908228) | 5998-01-466-4292 (5998014664292) | 5935-00-109-1991 (5935001091991) | 5905-00-978-7527 (5905009787527) | |
| 5935-01-589-2435 (5935015892435) | 5961-01-058-7929 (5961010587929) | 5910-01-261-9535 (5910012619535) | 5970-01-493-4527 (5970014934527) | |
| 5950-01-173-9025 (5950011739025) | 5905-00-051-2316 (5905000512316) | 5935-01-363-5367 (5935013635367) | 5905-01-128-9446 (5905011289446) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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