PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8212789Synchro,control Transformer

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5990-00-538-4032 · FSC 5990 · No Item Name Available
Verified by PartsTable
NSN 5990-00-538-4032 — this item is cataloged by the U.S. Government under National Stock Number 5990-00-538-4032. Primary manufacturer part number: 8212789.
Features
  • Synchro,control Transformer — FSC 5990
  • Body Size: 23
  • Spline Tooth Quantity: 21 SINGLE SHAFT
  • Transformation Ratio: 0.735 ROTOR TO STATOR NOMINAL
  • Shaft Type: SPLINE SINGLE SHAFT
  • Spline Tooth Diametral Pitch: 96 SINGLE SHAFT
  • Stator Input Current Rating: 200.0 MILLIAMPERES NOMINAL
  • Stator Input Voltage Rating in Volts: 90.0 NOMINAL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Synchro,control Transformer, cataloged under National Stock Number 5990-00-538-4032, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5990-00-538-4032
Primary Part Number8212789
Item NameSynchro,control Transformer
FSC / FSG5990 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Body Size23
Spline Tooth Quantity21 SINGLE SHAFT
Transformation Ratio0.735 ROTOR TO STATOR NOMINAL
Shaft TypeSPLINE SINGLE SHAFT
Spline Tooth Diametral Pitch96 SINGLE SHAFT
Stator Input Current Rating200.0 MILLIAMPERES NOMINAL
Stator Input Voltage Rating in Volts90.0 NOMINAL
Nondefinitive Spec/std Data203T6A TYPE
Terminal Type and Quantity7 SCREW
Stator Input Electrical Power Rating500.0 MILLIWATTS NOMINAL
Shaft Length0.6730 INCHES NOMINAL SINGLE SHAFT IN
Shaft Diameter0.4370 INCHES NOMINAL SINGLE SHAFT IN
Frequency in Hertz60.0 NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5990-00-813-18208212789 INTERCHANGEABLE
Synchro,control Transformer
Sae International Dba Sae International
1240-01-670-48938212789 INTERCHANGEABLE
Eyepiece Assembly,optical Instru
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
8212789 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
MILS12472TYPE23CT6A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
17M61234-7737 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5990-00-813-1820INTERCHANGEABLE
SYNCHRO,CONTROL TRANSFORMER
8212789
1240-01-670-4893INTERCHANGEABLE
EYEPIECE ASSEMBLY,OPTICAL INSTRU
8212789

Frequently Asked Questions

What is NSN 5990-00-538-4032?

NSN 5990-00-538-4032 is a Synchro,control Transformer, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5990 (No Item Name Available). Status: active.

What are the part numbers for NSN 5990-00-538-4032?

NSN 5990-00-538-4032 has 3 cross-referenced part numbers: 8212789 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), MILS12472TYPE23CT6A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 17M61234-7737 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5990-00-538-4032?

There are 2 known substitutes for 5990-00-538-4032: 5990-00-813-1820, 1240-01-670-4893. Verify interchangeability with system specifications before substitution.

What are the specifications of 8212789?

Key specifications for 8212789: Body Size: 23; Overall Length: 3.4910 INCHES NOMINAL IN; Spline Tooth Quantity: 21 SINGLE SHAFT; Transformation Ratio: 0.735 ROTOR TO STATOR NOMINAL. 14 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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