# NSN 5990-00-928-5593: Synchro, Control Transformer

NSN 5990-00-928-5593 (also written 5990009285593; NIIN 00-928-5593) is a synchro, control transformer in Federal Supply Class 5990, Synchros and Resolvers. 23 manufacturer part numbers from 12 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5990-00-928-5593 (5990009285593)
- NIIN: 00-928-5593 (009285593)
- Item name: SYNCHRO,CONTROL TRANSFORMER
- 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 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AJTJ | ZSO IMPEDANCE MAGNITUDE IN OHMS | MINIMUM 12000.00 AND MAXIMUM 14800.00 |
| AJTK | ZSO IMPEDANCE ANGLE IN DEG | MINIMUM 82.00 AND MAXIMUM 84.50 |
| CQWQ | SHAFT THREAD LENGTH | SINGLE SHAFT INCHES NOMINAL 0.2000 |
| CRSJ | SHAFT TYPE | SINGLE SHAFT SPLINE W/THREADS |
| CRSY | ALIGNMENT HOLE DEPTH | INCHES MINIMUM 0.1250 |
| ABRY | LENGTH | SHOULDER INCHES NOMINAL 0.1320 |
| AKAN | SHAFT THREAD CLASS | 2A |
| CQTM | TERMINAL LOCATION | REAR |
| AKAF | SHAFT THREAD DIRECTION | SINGLE SHAFT RIGHT-HAND |
| AJXA | SPLINE TOOTH DIAMETRAL PITCH | 120 |
| AJYY | SHAFT THREAD SERIES DESIGNATOR | SINGLE SHAFT UNF |
| AJVW | ALIGNMENT HOLE QUANTITY | 4 |
| AJWQ | PILOT LENGTH | INCHES NOMINAL 0.0400 |
| AJWX | MOUNTING SURFACE TO TERMINAL END DISTANCE | INCHES NOMINAL 2.5200 |
| AJTL | ZRS IMPEDANCE MAGNITUDE IN OHMS | MINIMUM 980.00 AND MAXIMUM 1180.00 |
| AJTM | ZRS IMPEDANCE ANGLE IN DEG | MINIMUM 42.00 AND MAXIMUM 52.00 |
| AJVF | PHASE SHIFT ANGLE IN DEG | INPUT TO OUTPUT NOMINAL 2.000 |
| AAVH | SHOULDER DIAMETER | INCHES MINIMUM 1.5615 AND INCHES MAXIMUM 1.5620 |
| AAVL | PILOT DIAMETER | INCHES MINIMUM 0.9370 AND INCHES MAXIMUM 0.9375 |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 3.0600 |
| ABKK | FLANGE DIAMETER | INCHES MINIMUM 1.7450 AND INCHES MAXIMUM 1.7500 |
| ABKU | FLANGE THICKNESS | INCHES NOMINAL 0.0930 |
| AJSP | STATOR INPUT CURRENT RATING | MILLIAMPERES MAXIMUM 7.0 |
| AJVM | SPLINE TOOTH QUANTITY | 21 |
| AJVV | TORQUE GRADIENT PER ANGULAR DEG | INCH-OUNCES MAXIMUM 0.100 |
| CSJY | TRANSFORMATION RATIO | ROTOR TO STATOR NOMINAL 0.735 |
| CTCW | ALIGNMENT HOLE BOLT CIRCLE DIAMETER | INCHES NOMINAL 1.2500 |
| CWBH | SHAFT NOMINAL THREAD SIZE | SINGLE SHAFT INCHES 0.190 |
| MATT | MATERIAL | BODY STEEL CORROSION RESISTING |
| 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 |
| TTQY | TERMINAL TYPE AND QUANTITY | SCREW 5 |
| AJVG | MAXIMUM FUNDAMENTAL NULL VOLTAGE IN MILLIVOLTS PER VOLT | OUTPUT 20.00 |
| AJVH | MAXIMUM TOTAL NULL VOLTAGE OUTPUT IN MILLIVOLTS PER VOLT | 30.00 |
| AJVL | ELECTRICAL ERROR ANGULAR RANGE IN MINUTES | -6.0 TO 6.0 |
| AHCG | MAXIMUM TEMP RISE | CELSIUS 20.0 |
| AJSL | BODY SIZE | 18 |
| AJSN | STATOR INPUT VOLTAGE RATING IN VOLTS | NOMINAL 90.0 |
| ZZZK | SPECIFICATION/STANDARD DATA | GOVERNMENT SPECIFICATION 81349--IL-S-20708 TO 29 |
| AJSQ | STATOR INPUT ELECTRICAL POWER RATING | MILLIWATTS NOMINAL 50.0 |
| ABPA | UNDERCUT DIAMETER | INCHES NOMINAL 1.6250 |
| ABPC | UNDERCUT WIDTH | INCHES NOMINAL 0.0780 |
| AAQL | BODY STYLE | — |
| ABXF | SHAFT LENGTH | SINGLE SHAFT INCHES NOMINAL 0.5400 |
| AJSS | FREQUENCY IN HERTZ | NOMINAL 400.0 |
| ABWV | SHAFT DIAMETER | SINGLE SHAFT INCHES MINIMUM 0.1870 AND INCHES MAXIMUM 0.1872 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 18CT4 | 10112 | GENERAL DYNAMICS MOTION CONTROL LLC DIV GENERAL DYNAMICS OTS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 18CT4A | 98853 | HAMILTON STANDARD ELECTRONICS SYSTEMS INC TELE-DYNAMICS DIV | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 18CT4B | 08160 | BOWEN & COMPANY, INC. DBA BOWEN & COMPANY, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 18CT4B | 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/) |
| 18CT4C | 10112 | GENERAL DYNAMICS MOTION CONTROL LLC DIV GENERAL DYNAMICS OTS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 18CT4C | 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/) |
| 315-1268P2 | 99687 | RAYTHEON CO EQUIPMENT DEVELOPMENT LAB | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 450904-9153 | D4856 | NORTHROP GRUMMAN LITEF GMBH | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5990PL1373991 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AS20708/29 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AS20708/29 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LD266561 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| M20708-29-001 | 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/) |
| M20708-29-01 | 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/) |
| M20708/29-01C | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| M20708/29-01C | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| M20708/29-01C | 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/) |
| M2078/29D-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/) |
| MIL-S-20708/29 | 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/) |
| S315-1268P2 | 99687 | RAYTHEON CO EQUIPMENT DEVELOPMENT LAB | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SAE-AS20708/29 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| V23401C0003A010 | C0425 | SIEMENS AG EC R LOG | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| W41281-A6000-A10 | C0426 | HENSOLDT SENSORS GMBH | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-09 | [SPE7M226P0836](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5990009285593) | SYNCHRO, CONTROL TRA | GENERAL DYNAMICS MOTION CONTROL LLC DIV GENERAL DYNAMICS OTS INC | $196,251.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5990009285593&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5990009285593
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

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