# NSN 5990-00-179-1871: Synchro, Differential Transmitter

NSN 5990-00-179-1871 (also written 5990001791871; NIIN 00-179-1871) is a synchro, differential transmitter in Federal Supply Class 5990, Synchros and Resolvers. 10 manufacturer part numbers from 5 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 5990-00-179-1871 (5990001791871)
- NIIN: 00-179-1871 (001791871)
- Item name: SYNCHRO,DIFFERENTIAL TRANSMITTER
- Federal Supply Class: [FSC 5990 Synchros and Resolvers](https://nsnexplorer.com/fsc/5990/)
- Federal Supply Group: [FSG 59](https://nsnexplorer.com/group/59/)
- Acquisition method suffix code: AMSC T: handled under qualified products list procedures. (observed 2026-10-13)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CQWQ | SHAFT THREAD LENGTH | SINGLE SHAFT INCHES NOMINAL 0.2000 |
| AJVG | MAXIMUM FUNDAMENTAL NULL VOLTAGE IN MILLIVOLTS PER VOLT | OUTPUT 60.00 |
| AKAF | SHAFT THREAD DIRECTION | SINGLE SHAFT RIGHT-HAND |
| AKAN | SHAFT THREAD CLASS | 2A |
| CQRG | BODY MATERIAL | STEEL CORROSION RESISTING |
| CRSJ | SHAFT TYPE | SINGLE SHAFT SPLINE W/THREADS |
| CRSY | ALIGNMENT HOLE DEPTH | INCHES NOMINAL 0.1250 |
| CSJY | TRANSFORMATION RATIO | ROTOR TO STATOR NOMINAL 1.154 |
| CTCW | ALIGNMENT HOLE BOLT CIRCLE DIAMETER | INCHES NOMINAL 0.8120 |
| CWBH | SHAFT NOMINAL THREAD SIZE | SINGLE SHAFT INCHES 0.190 |
| AAQL | BODY STYLE | — |
| AAVH | SHOULDER DIAMETER | INCHES MINIMUM 0.9995 AND INCHES MAXIMUM 1.0000 |
| ZZZK | SPECIFICATION/STANDARD DATA | GOVERNMENT SPECIFICATION 81349--IL-S-20708 TO 81 |
| AAVL | PILOT DIAMETER | INCHES MINIMUM 0.6245 AND INCHES MAXIMUM 0.6250 |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 2.4060 |
| ABKK | FLANGE DIAMETER | INCHES MINIMUM 1.0570 AND INCHES MAXIMUM 1.0620 |
| ABKU | FLANGE THICKNESS | INCHES NOMINAL 0.0930 |
| ABPA | UNDERCUT DIAMETER | INCHES NOMINAL 0.9750 |
| ABPC | UNDERCUT WIDTH | INCHES NOMINAL 0.0620 |
| ABRY | LENGTH | SHOULDER INCHES NOMINAL 0.0620 |
| ABWV | SHAFT DIAMETER | SINGLE SHAFT INCHES NOMINAL 0.1872 |
| ABXF | SHAFT LENGTH | SINGLE SHAFT INCHES NOMINAL 0.5550 |
| AFJN | FRAGILITY FACTOR | MODERATELY RUGGED |
| CQTM | TERMINAL LOCATION | REAR |
| AJSL | BODY SIZE | 11 |
| AJSN | STATOR INPUT VOLTAGE RATING IN VOLTS | NOMINAL 90.0 |
| AJSP | STATOR INPUT CURRENT RATING | MILLIAMPERES MAXIMUM 49.0 |
| AJSQ | STATOR INPUT ELECTRICAL POWER RATING | MILLIWATTS NOMINAL 530.0 |
| AJSS | FREQUENCY IN HERTZ | NOMINAL 400.0 |
| AJTJ | ZSO IMPEDANCE MAGNITUDE IN OHMS | MINIMUM 1590.00 AND MAXIMUM 2050.00 |
| AJTK | ZSO IMPEDANCE ANGLE IN DEG | MINIMUM 79.00 AND MAXIMUM 85.00 |
| AJTL | ZRS IMPEDANCE MAGNITUDE IN OHMS | MINIMUM 470.00 AND MAXIMUM 570.00 |
| AJTM | ZRS IMPEDANCE ANGLE IN DEG | MINIMUM 23.00 AND MAXIMUM 33.00 |
| AJVF | PHASE SHIFT ANGLE IN DEG | INPUT TO OUTPUT NOMINAL 4.000 |
| AJXA | SPLINE TOOTH DIAMETRAL PITCH | 120 |
| AJVH | MAXIMUM TOTAL NULL VOLTAGE OUTPUT IN MILLIVOLTS PER VOLT | 90.00 |
| AJVL | ELECTRICAL ERROR ANGULAR RANGE IN MINUTES | -7.0 TO 7.0 |
| AJVM | SPLINE TOOTH QUANTITY | 21 |
| AJVT | ACTUATOR FRICTION TORQUE AT PLUS 25 DEG CELSIUS | INCH-OUNCES MAXIMUM 0.07 |
| AJVW | ALIGNMENT HOLE QUANTITY | 4 |
| AJWQ | PILOT LENGTH | INCHES NOMINAL 0.0620 |
| AJWX | MOUNTING SURFACE TO TERMINAL END DISTANCE | INCHES NOMINAL 1.8510 |
| TEST | TEST DATA DOCUMENT | 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.). 81349--IL-S-20708 |
| AJYY | SHAFT THREAD SERIES DESIGNATOR | SINGLE SHAFT UNF |
| TTQY | TERMINAL TYPE AND QUANTITY | SCREW 6 |
| AHCG | MAXIMUM TEMP RISE | CELSIUS 20.0 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 11CDX4A | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 11CDX4B | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 11CDX4B | 99932 | MOOG INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 3522 500 05266 | H0203 | THALES NEDERLAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AS20708/81 | 0VH01 | SAE CUSTOMER SERVICE DEPT 2045 | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| M20708/81-001 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| M20708/81-01B | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| M20708/81-01B | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MILS20708-81 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SAE-AS20708/81 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE7M5-27-T-0426 | 55 | 2026-10-23 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5990001791871&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5990001791871&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5990001791871
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/5990-00-179-1871/
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