PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8212797Synchro,differential Transmitter

Sae International Dba Sae International · NSN 5990-00-644-0096 · FSC 5990 · No Item Name Available
Verified by PartsTable
NSN 5990-00-644-0096 — this item is cataloged by the U.S. Government under National Stock Number 5990-00-644-0096. Primary manufacturer part number: 8212797.
Features
  • Synchro,differential Transmitter — FSC 5990
  • Shoulder Diameter: 1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM IN
  • Body Style: STANDARD ROUND D
  • Body Diameter: 1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM IN
  • Second Shoulder Diameter: 1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM IN
  • Flange Diameter: 2.2490 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN
  • Flange Thickness: 0.2480 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
  • Second Shoulder Length: 0.1700 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 5990-00-644-0096, 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 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5990-00-644-0096
Primary Part Number8212797
Item NameSynchro,differential Transmitter
FSC / FSG5990 / 59 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusACTIVE
Shoulder Diameter1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM IN
Body StyleSTANDARD ROUND D
Body Diameter1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM IN
Second Shoulder Diameter1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM IN
Flange Diameter2.2490 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN
Flange Thickness0.2480 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
Second Shoulder Length0.1700 INCHES NOMINAL IN
Pilot Diameter0.5900 INCHES MINIMUM AND 0.6000 INCHES MAXIMUM IN
Shaft Nominal Thread Size0.250 INCHES SINGLE SHAFT IN
Shaft Thread Series DesignatorUNF SINGLE SHAFT
Shaft Length0.6930 INCHES NOMINAL SINGLE SHAFT IN
Maximum Temp Rise65.0 CELSIUS DEGC
Transformation Ratio1.154 ROTOR TO STATOR NOMINAL
Test Data Document81349-MIL-S-17245 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.).
Stator Input Electrical Power Rating11.8 WATTS NOMINAL
Shaft Thread DirectionRIGHT-HAND SINGLE SHAFT
Actuator Friction Torque at Minus 55 Deg Celsius0.50 INCH-OUNCES MAXIMUM IN
Body MaterialALUMINUM
Body Size23
Terminal LocationREAR
Shaft Diameter0.2500 INCHES NOMINAL SINGLE SHAFT IN
Electrical Error Angular Range in Minutes-8.0 TO 8.0
Mounting Surface to Terminal End Distance3.4300 INCHES MINIMUM AND 3.4450 INCHES MAXIMUM IN
Aft of First Flange Diameter1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM IN
Zro Resistance in Ohms138.00 NOMINAL
Plus J Zro Reactance in Ohms369.00 NOMINAL
Stator Input Current Rating380.0 MILLIAMPERES NOMINAL
Maximum Fundamental Null Voltage in Millivolts Per Volt75.00 OUTPUT
Zrs Resistance in Ohms213.00 NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5990-00-553-67118212778 INTERCHANGEABLE
Synchro,transmitter
Sae International Dba Sae International
4920-00-588-7912ST11090 INTERCHANGEABLE
Valve
Elbitamerica, Inc.
5996-00-610-3275 INTERCHANGEABLE
Amplifier,radio Frequency
5990-00-636-41117674819 INTERCHANGEABLE
Synchro,receiver
Sae International Dba Sae International
5990-00-636-41197676906 INTERCHANGEABLE
Synchro,transmitter
Sae International Dba Sae International
5990-00-644-0101 INTERCHANGEABLE
Synchro,differential Transmitter
5990-00-644-01028212786 INTERCHANGEABLE
Synchro,differential Transmitter
Sae International Dba Sae International
5990-00-644-01207674821 INTERCHANGEABLE
Synchro,control Transformer
Sae International Dba Sae International
5990-00-644-01238212775 INTERCHANGEABLE
Synchro,control Transformer
Sae International Dba Sae International
5342-00-693-2473 INTERCHANGEABLE
Fastener,clamp
Cross-Reference Index
Part NumberManufacturer
8212797 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
23TDX6A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
11090 Northrop Grumman Systems Corporation (USA)
SAE-AS20708/94 Sae International Dba Sae International (USA)
8212797 PRIMARY Sae International Dba Sae International (USA)
MIL-S-20708/94 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5990-00-553-6711INTERCHANGEABLE
SYNCHRO,TRANSMITTER
8212778
4920-00-588-7912INTERCHANGEABLE
VALVE
ST11090
5996-00-610-3275INTERCHANGEABLE
AMPLIFIER,RADIO FREQUENCY
5990-00-636-4111INTERCHANGEABLE
SYNCHRO,RECEIVER
7674819
5990-00-636-4119INTERCHANGEABLE
SYNCHRO,TRANSMITTER
7676906
5990-00-644-0101INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER
5990-00-644-0102INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER
8212786
5990-00-644-0120INTERCHANGEABLE
SYNCHRO,CONTROL TRANSFORMER
7674821
5990-00-644-0123INTERCHANGEABLE
SYNCHRO,CONTROL TRANSFORMER
8212775
5342-00-693-2473INTERCHANGEABLE
FASTENER,CLAMP
5990-00-756-2555INTERCHANGEABLE
SYNCHRO,TRANSMITTER
5990-00-811-5227INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER
8212772

Frequently Asked Questions

What is NSN 5990-00-644-0096?

NSN 5990-00-644-0096 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 5990-00-644-0096?

NSN 5990-00-644-0096 has 6 cross-referenced part numbers: 8212797 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 23TDX6A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 11090 (Northrop Grumman Systems Corporation), SAE-AS20708/94 (Sae International Dba Sae International), 8212797 (Sae International Dba Sae International) and 1 more.

What NSN replaces 5990-00-644-0096?

There are 12 known substitutes for 5990-00-644-0096: 5990-00-553-6711, 4920-00-588-7912, 5996-00-610-3275 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8212797?

Key specifications for 8212797: Shoulder Diameter: 1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM IN; Body Style: STANDARD ROUND D; Body Diameter: 1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM IN; Second Shoulder Diameter: 1.9985 INCHES MINIMUM AND 1.9995 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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