PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M20708/81-02BSynchro,differential Transmitter

Sae International Dba Sae International · NSN 5990-00-603-9313 · FSC 5990 · No Item Name Available
Verified by PartsTable
NSN 5990-00-603-9313 — this item is cataloged by the U.S. Government under National Stock Number 5990-00-603-9313. Primary manufacturer part number: M20708/81-02B.
Features
  • Synchro,differential Transmitter — FSC 5990
  • Body Style: STANDARD ROUND C
  • Shoulder Diameter: 0.9995 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
  • Flange Thickness: 0.0930 INCHES NOMINAL IN
  • Pilot Diameter: 0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
  • Flange Diameter: 1.0570 INCHES MINIMUM AND 1.0620 INCHES MAXIMUM IN
  • Undercut Diameter: 0.9700 INCHES NOMINAL IN
  • Undercut Width: 0.0620 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Synchro,differential Transmitter, cataloged under National Stock Number 5990-00-603-9313, 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 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5990-00-603-9313
Primary Part NumberM20708/81-02B
Item NameSynchro,differential Transmitter
FSC / FSG5990 / 59 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusACTIVE
Body StyleSTANDARD ROUND C
Shoulder Diameter0.9995 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
Flange Thickness0.0930 INCHES NOMINAL IN
Pilot Diameter0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
Flange Diameter1.0570 INCHES MINIMUM AND 1.0620 INCHES MAXIMUM IN
Undercut Diameter0.9700 INCHES NOMINAL IN
Undercut Width0.0620 INCHES NOMINAL IN
Alignment Hole Quantity4
Zrs Impedance Magnitude in Ohms470.00 MINIMUM AND 570.00 MAXIMUM
Shaft TypeROUND, SLOTTED SINGLE SHAFT
Actuator Friction Torque at Plus 25 Deg Celsius0.07 INCH-OUNCES MAXIMUM IN
Terminal LocationREAR
Maximum Total Null Voltage Output in Millivolts Per Volt90.00
Zrs Impedance Angle in Deg23.00 MINIMUM AND 33.00 MAXIMUM
Body Size11
Phase Shift Angle in Deg4.000 INPUT TO OUTPUT NOMINAL
Zso Impedance Angle in Deg79.00 MINIMUM AND 85.00 MAXIMUM
Shaft Slot Depth0.0250 INCHES NOMINAL SINGLE SHAFT IN
Maximum Fundamental Null Voltage in Millivolts Per Volt60.00 OUTPUT
Transformation Ratio1.154 ROTOR TO STATOR NOMINAL
Electrical Error Angular Range in Minutes-7.0 TO 7.0
Frequency in Hertz400.0 NOMINAL
Zso Impedance Magnitude in Ohms1590.00 MINIMUM AND 2050.00 MAXIMUM
Mounting Surface to Terminal End Distance1.8510 INCHES MAXIMUM IN
Terminal Type and Quantity6 WIRE LEAD
Length0.0620 INCHES NOMINAL SHOULDER IN
Pilot Length0.0620 INCHES NOMINAL IN
Shaft Slot Width0.0200 INCHES NOMINAL SINGLE SHAFT IN
Shaft Length0.3680 INCHES NOMINAL SINGLE SHAFT IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5990-00-179-1871M20708/81-01B INTERCHANGEABLE
Synchro,differential Transmitter
Sae International Dba Sae International
5990-00-722-7327 INTERCHANGEABLE
Synchro,differential Transmitter
5990-00-924-3939 INTERCHANGEABLE
Synchro,differential Transmitter
Cross-Reference Index
Part NumberManufacturer
MIL-S-20708/81 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
11CDX4B Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M20708-81C-002 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M20708/81-02B PRIMARY Sae International Dba Sae International (USA)
M20708/81-02B Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
SAE-AS20708/81 Sae International Dba Sae International (USA)
Related Parts
5990-00-179-1871INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER
M20708/81-01B
5990-00-722-7327INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER
5990-00-924-3939INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER

Frequently Asked Questions

What is NSN 5990-00-603-9313?

NSN 5990-00-603-9313 is a Synchro,differential Transmitter, manufactured by Sae International Dba Sae International, classified under FSC 5990 (No Item Name Available). Status: active.

What are the part numbers for NSN 5990-00-603-9313?

NSN 5990-00-603-9313 has 6 cross-referenced part numbers: MIL-S-20708/81 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 11CDX4B (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M20708-81C-002 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M20708/81-02B (Sae International Dba Sae International), M20708/81-02B (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 5990-00-603-9313?

There are 3 known substitutes for 5990-00-603-9313: 5990-00-179-1871, 5990-00-722-7327, 5990-00-924-3939. Verify interchangeability with system specifications before substitution.

What are the specifications of M20708/81-02B?

Key specifications for M20708/81-02B: Body Style: STANDARD ROUND C; Shoulder Diameter: 0.9995 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN; Flange Thickness: 0.0930 INCHES NOMINAL IN; Pilot Diameter: 0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN. 30 total characteristics are documented in the Federal Logistics Information System.

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