PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M20708/20-01CSynchro,transmitter

Sae International Dba Sae International · NSN 5990-00-018-9723 · FSC 5990 · No Item Name Available
Verified by PartsTable
NSN 5990-00-018-9723 — this item is cataloged by the U.S. Government under National Stock Number 5990-00-018-9723. Primary manufacturer part number: M20708/20-01C.
Features
  • Synchro,transmitter — FSC 5990
  • Length: 0.1320 INCHES NOMINAL SHOULDER IN
  • Undercut Width: 0.0780 INCHES NOMINAL IN
  • Flange Thickness: 0.0930 INCHES NOMINAL IN
  • Body Style: STANDARD ROUND C
  • Undercut Diameter: 1.3120 INCHES NOMINAL IN
  • Shoulder Diameter: 1.3115 INCHES MINIMUM AND 1.3120 INCHES MAXIMUM IN
  • Pilot Diameter: 0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Synchro,transmitter, cataloged under National Stock Number 5990-00-018-9723, 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 Sae International Dba Sae International. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 24 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5990-00-018-9723
Primary Part NumberM20708/20-01C
Item NameSynchro,transmitter
FSC / FSG5990 / 59 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusCANCELLED
Length0.1320 INCHES NOMINAL SHOULDER IN
Undercut Width0.0780 INCHES NOMINAL IN
Flange Thickness0.0930 INCHES NOMINAL IN
Body StyleSTANDARD ROUND C
Undercut Diameter1.3120 INCHES NOMINAL IN
Shoulder Diameter1.3115 INCHES MINIMUM AND 1.3120 INCHES MAXIMUM IN
Pilot Diameter0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
Flange Diameter1.4320 INCHES MINIMUM AND 1.4370 INCHES MAXIMUM IN
Alignment Hole Depth0.1250 INCHES MINIMUM 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.).
Fragility FactorMODERATELY RUGGED
Shaft Nominal Thread Size0.190 INCHES SINGLE SHAFT IN
Shaft Thread DirectionRIGHT-HAND SINGLE SHAFT
Phase Shift Angle in Deg7.000 INPUT TO OUTPUT NOMINAL
Maximum Total Null Voltage Output in Millivolts Per Volt90.00
Transformation Ratio0.783 ROTOR TO STATOR NOMINAL
Shaft TypeSPLINE W/THREADS SINGLE SHAFT
Body Size15
Alignment Hole Quantity4
Shaft Thread Series DesignatorUNF SINGLE SHAFT
Frequency in Hertz60.0 NOMINAL
Shaft Length0.5400 INCHES NOMINAL SINGLE SHAFT IN
Rotor Input Current Rating22.0 MILLIAMPERES MAXIMUM
Torque Gradient Per Angular Deg0.050 INCH-OUNCES MAXIMUM IN
Specification/standard Data81349-MIL-S-20708/20 GOVERNMENT SPECIFICATION
Mounting Surface to Terminal End Distance2.5230 INCHES NOMINAL IN
Maximum Fundamental Null Voltage in Millivolts Per Volt45.00 OUTPUT
Zss Impedance Magnitude in Ohms675.00 MINIMUM AND 825.00 MAXIMUM
Zss Impedance Angle in Deg11.00 MINIMUM AND 16.00 MAXIMUM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5999-00-341-5218181450 INTERCHANGEABLE
Block,contact
Telemechanics Inc
5990-00-491-86133028238 INTERCHANGEABLE
Synchro,transmitter
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
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
5990-00-851-2793 INTERCHANGEABLE
Synchro,differential Transmitter
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
VCX15-6N2 General Dynamics Motion Control Llc (USA)
300D717H02 Northrop Grumman Systems Corporation Div Marine Systems (USA)
15CS6B Senior Operations Llc Div Senior Aerospace Ketema (USA)
AS20708/20 Sae Customer Service Dept 2045 (USA)
181450 Northrop Grumman Systems Corporation (USA)
AS20708/20 Society of Automotive Engineers Inc (USA)
SAE-AS20708/20 Sae International Dba Sae International (USA)
M20708/20-01C PRIMARY Sae International Dba Sae International (USA)
15CX6C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M20708/20C-001 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
15CX6B Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-S20708 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5990PL1359989 Jednolity Indeks Materialowy - Uniform Material Index (POL)
M20708/20-01C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILS20708-20 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M20708/20-02C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AS20708/20 Sae International Dba Sae International (USA)
M20708/20-01C Society of Automotive Engineers Inc (USA)
VCX15-6D2 General Dynamics Motion Control Llc (USA)
1889768PC23 Northrop Grumman Systems Corporation (USA)
Related Parts
5999-00-341-5218INTERCHANGEABLE
BLOCK,CONTACT
181450
5990-00-491-8613INTERCHANGEABLE
SYNCHRO,TRANSMITTER
3028238
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
5990-00-851-2793INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER
5990-00-866-3692INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER
5990-00-899-0517INTERCHANGEABLE
SYNCHRO,CONTROL TRANSFORMER
5990-00-912-8849INTERCHANGEABLE
SYNCHRO,TRANSMITTER
5990-01-016-0245INTERCHANGEABLE
SYNCHRO,TRANSMITTER
M20708/20-02C
5990-01-121-1175INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL RECEIVER
M20708/67-01B

Frequently Asked Questions

What is NSN 5990-00-018-9723?

NSN 5990-00-018-9723 is a Synchro,transmitter, manufactured by Sae International Dba Sae International, classified under FSC 5990 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5990-00-018-9723?

NSN 5990-00-018-9723 has 24 cross-referenced part numbers: VCX15-6N2 (General Dynamics Motion Control Llc), 300D717H02 (Northrop Grumman Systems Corporation Div Marine Systems), 15CS6B (Senior Operations Llc Div Senior Aerospace Ketema), AS20708/20 (Sae Customer Service Dept 2045), 181450 (Northrop Grumman Systems Corporation) and 19 more.

What NSN replaces 5990-00-018-9723?

There are 12 known substitutes for 5990-00-018-9723: 5999-00-341-5218, 5990-00-491-8613, 5990-00-503-4126 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M20708/20-01C?

Key specifications for M20708/20-01C: Length: 0.1320 INCHES NOMINAL SHOULDER IN; Undercut Width: 0.0780 INCHES NOMINAL IN; Flange Thickness: 0.0930 INCHES NOMINAL IN; Body Style: STANDARD ROUND C. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5990-00-018-9723 still in active supply?

NSN 5990-00-018-9723 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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