PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

23CX6Synchro,differential Transmitter

General Dynamics Motion Control Llc · NSN 5990-00-851-2793 · FSC 5990 · No Item Name Available
Verified by PartsTable
NSN 5990-00-851-2793 — this item is cataloged by the U.S. Government under National Stock Number 5990-00-851-2793. Primary manufacturer part number: 23CX6.
Features
  • Synchro,differential Transmitter — FSC 5990
  • Alignment Hole Quantity: 3
  • Body Material: STEEL CORROSION RESISTING
  • Length: 0.2500 INCHES NOMINAL SHOULDER IN
  • 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.).
  • Zso Resistance in Ohms: 217.00 NOMINAL
  • Terminal Location: REAR
  • Shaft Thread Direction: RIGHT-HAND SINGLE SHAFT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Synchro,differential Transmitter, cataloged under National Stock Number 5990-00-851-2793, is classified within Federal Supply Class 5990 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is General Dynamics Motion Control Llc. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5990-00-851-2793
Primary Part Number23CX6
Item NameSynchro,differential Transmitter
FSC / FSG5990 / 59 — No Item Name Available
ManufacturerGeneral Dynamics Motion Control Llc
StatusCANCELLED
Alignment Hole Quantity3
Body MaterialSTEEL CORROSION RESISTING
Length0.2500 INCHES NOMINAL SHOULDER IN
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.).
Zso Resistance in Ohms217.00 NOMINAL
Terminal LocationREAR
Shaft Thread DirectionRIGHT-HAND SINGLE SHAFT
Body StyleSTANDARD ROUND D
Flange Thickness0.2480 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
Second Shoulder Length0.1680 INCHES MINIMUM AND 0.1700 INCHES MAXIMUM IN
Shoulder Diameter1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM IN
Body Diameter1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM IN
Pilot Diameter0.5900 INCHES MINIMUM AND 0.6000 INCHES MAXIMUM IN
Flange Diameter2.2490 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN
Second Shoulder Diameter1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM IN
Shaft Nominal Thread Size0.2500 INCHES SINGLE SHAFT IN
Frequency in Hertz60.0 NOMINAL
Electrical Error Angular Range in Minutes-8.0 TO 8.0
Alignment Hole Depth0.1250 INCHES NOMINAL IN
Body Size23
Shaft Thread Length0.3100 INCHES MINIMUM AND 0.3300 INCHES MAXIMUM SINGLE SHAFT IN
Stator Input Electrical Power Rating1.6 WATTS NOMINAL
Actuator Friction Torque at Minus 55 Deg Celsius0.50 INCH-OUNCES MAXIMUM IN
Aft of First Flange Diameter1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM IN
Fragility FactorMODERATELY RUGGED
Maximum Fundamental Null Voltage in Millivolts Per Volt75.00 OUTPUT
Shaft Diameter0.2402 INCHES MINIMUM AND 0.2405 INCHES MAXIMUM SINGLE SHAFT IN
Maximum Temp Rise45.0 CELSIUS DEGC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5990-00-018-9723M20708/20-01C INTERCHANGEABLE
Synchro,transmitter
Sae International Dba Sae International
5990-00-501-4991 INTERCHANGEABLE
Synchro,transmitter
5990-00-503-4126 INTERCHANGEABLE
Synchro,transmitter
5990-00-552-9365 INTERCHANGEABLE
Synchro,receiver
5990-00-644-0101 INTERCHANGEABLE
Synchro,differential Transmitter
5990-00-677-6476M20708/25-01B INTERCHANGEABLE
Synchro,control Transformer
Sae International Dba Sae International
5990-00-852-2363M20708/52-01D INTERCHANGEABLE
Synchro,transmitter
Sae International Dba Sae International
5990-00-866-3692 INTERCHANGEABLE
Synchro,differential Transmitter
5990-00-899-0517 INTERCHANGEABLE
Synchro,control Transformer
5990-00-912-8849 INTERCHANGEABLE
Synchro,transmitter
Cross-Reference Index
Part NumberManufacturer
23CX6 General Dynamics Motion Control Llc (USA)
MS20708/94-23CX6 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILS20708 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4186800-005 Raytheon Company Dba Raytheon (USA)
Related Parts
5990-00-018-9723INTERCHANGEABLE
SYNCHRO,TRANSMITTER
M20708/20-01C
5990-00-501-4991INTERCHANGEABLE
SYNCHRO,TRANSMITTER
5990-00-503-4126INTERCHANGEABLE
SYNCHRO,TRANSMITTER
5990-00-552-9365INTERCHANGEABLE
SYNCHRO,RECEIVER
5990-00-644-0101INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER
5990-00-677-6476INTERCHANGEABLE
SYNCHRO,CONTROL TRANSFORMER
M20708/25-01B
5990-00-852-2363INTERCHANGEABLE
SYNCHRO,TRANSMITTER
M20708/52-01D
5990-00-866-3692INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER
5990-00-899-0517INTERCHANGEABLE
SYNCHRO,CONTROL TRANSFORMER
5990-00-912-8849INTERCHANGEABLE
SYNCHRO,TRANSMITTER
5990-01-121-1175INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL RECEIVER
M20708/67-01B

Frequently Asked Questions

What is NSN 5990-00-851-2793?

NSN 5990-00-851-2793 is a Synchro,differential Transmitter, manufactured by General Dynamics Motion Control Llc, classified under FSC 5990 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5990-00-851-2793?

NSN 5990-00-851-2793 has 4 cross-referenced part numbers: 23CX6 (General Dynamics Motion Control Llc), MS20708/94-23CX6 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILS20708 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 4186800-005 (Raytheon Company Dba Raytheon).

What NSN replaces 5990-00-851-2793?

There are 11 known substitutes for 5990-00-851-2793: 5990-00-018-9723, 5990-00-501-4991, 5990-00-503-4126 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 23CX6?

Key specifications for 23CX6: Alignment Hole Quantity: 3; Body Material: STEEL CORROSION RESISTING; Length: 0.2500 INCHES NOMINAL SHOULDER IN; Special Features: SLOTTED KEYWAY FULL LENGTH OF SHAFT. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5990-00-851-2793 still in active supply?

NSN 5990-00-851-2793 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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