PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

VCT37-6J4Synchro,control Transformer

General Dynamics Motion Control Llc · NSN 5990-00-268-9068 · FSC 5990 · No Item Name Available
Verified by PartsTable
NSN 5990-00-268-9068 — this item is cataloged by the U.S. Government under National Stock Number 5990-00-268-9068. Primary manufacturer part number: VCT37-6J4.
Features
  • Synchro,control Transformer — FSC 5990
  • Shaft Type: ROUND, THREADED SINGLE SHAFT
  • Terminal Type and Quantity: 5 WIRE LEAD
  • Test Data Document: 81349-MIL-S-2335 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.).
  • Electrical Error Angular Range in Minutes: -18.0 TO 18.0
  • Shaft Nominal Thread Size: 0.247 INCHES SINGLE SHAFT IN
  • Stator Input Electrical Power Rating: 700.0 MILLIWATTS NOMINAL
  • Shaft Length: 1.0500 INCHES NOMINAL SINGLE SHAFT IN
Applications
  • Applications requiring Aluminum Alloy Body construction
General Description

The Synchro,control Transformer, cataloged under National Stock Number 5990-00-268-9068, 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 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 7 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
NSN5990-00-268-9068
Primary Part NumberVCT37-6J4
Item NameSynchro,control Transformer
FSC / FSG5990 / 59 — No Item Name Available
ManufacturerGeneral Dynamics Motion Control Llc
StatusCANCELLED
Shaft TypeROUND, THREADED SINGLE SHAFT
Terminal Type and Quantity5 WIRE LEAD
Test Data Document81349-MIL-S-2335 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.).
Electrical Error Angular Range in Minutes-18.0 TO 18.0
Shaft Nominal Thread Size0.247 INCHES SINGLE SHAFT IN
Stator Input Electrical Power Rating700.0 MILLIWATTS NOMINAL
Shaft Length1.0500 INCHES NOMINAL SINGLE SHAFT IN
Stator Input Current Rating35.0 MILLIAMPERES NOMINAL
Distance Between Flanges1.8120 INCHES NOMINAL IN
MaterialALUMINUM ALLOY BODY
Body Size37
Frequency in Hertz60.00 NOMINAL
Stator Input Voltage Rating in Volts115.0 NOMINAL
Shaft Thread Series DesignatorUNF SINGLE SHAFT
Shaft Diameter0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM SINGLE SHAFT IN
Pilot Diameter1.6200 INCHES NOMINAL IN
Flange Diameter3.6230 INCHES MINIMUM AND 3.6250 INCHES MAXIMUM IN
Flange Thickness0.2500 INCHES NOMINAL IN
Shoulder Diameter3.3120 INCHES NOMINAL IN
Body StyleSTANDARD ROUND DOUBLE FLANGE B
Length0.9700 INCHES NOMINAL SHOULDER IN
Shaft Thread Length0.1800 INCHES MAXIMUM SINGLE SHAFT IN
Shaft Thread DirectionLEFT-HAND SINGLE SHAFT
Pilot Length0.2100 INCHES NOMINAL IN
Terminal LocationREAR
Shaft Thread Class2A SINGLE SHAFT A
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5990-00-268-9074 INTERCHANGEABLE
Synchro,differential Transmitter
5990-00-268-9075 INTERCHANGEABLE
Synchro,differential Transmitter
5990-00-268-9081 INTERCHANGEABLE
Synchro,transmitter
5990-00-268-9089 INTERCHANGEABLE
Synchro,transmitter
5990-00-503-0594 INTERCHANGEABLE
Synchro,control Transformer
5990-00-504-8279 INTERCHANGEABLE
Synchro,receiver
5990-00-556-9851 INTERCHANGEABLE
Synchro,differential Transmitter
5990-00-578-77557411379P1 INTERCHANGEABLE
Synchro,differential Transmitter
Lockheed Martin Corporation Div Rms
5990-00-636-4149561790-3 INTERCHANGEABLE
Synchro,transmitter
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5990-00-636-4151TX37-6E4 INTERCHANGEABLE
Synchro,transmitter
General Dynamics Motion Control Llc
Cross-Reference Index
Part NumberManufacturer
VCT37-6J4 General Dynamics Motion Control Llc (USA)
173108 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
SK107606 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
426468 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
SK139814 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
426468 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
MIL-S-2335 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
561792-9 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
292870 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
5HCT6 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
468830 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
426468 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
DL4W405A81 General Electric Company (USA)
17M61231-9253 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
SK106060 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
17M61231-9253 Naval Ordnance Standards (USA)
SK104258 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5990-00-268-9074INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER
5990-00-268-9075INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER
5990-00-268-9081INTERCHANGEABLE
SYNCHRO,TRANSMITTER
5990-00-268-9089INTERCHANGEABLE
SYNCHRO,TRANSMITTER
5990-00-503-0594INTERCHANGEABLE
SYNCHRO,CONTROL TRANSFORMER
5990-00-504-8279INTERCHANGEABLE
SYNCHRO,RECEIVER
5990-00-556-9851INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER
5990-00-578-7755INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER
7411379P1
5990-00-636-4149INTERCHANGEABLE
SYNCHRO,TRANSMITTER
561790-3
5990-00-636-4151INTERCHANGEABLE
SYNCHRO,TRANSMITTER
TX37-6E4
5990-00-644-0088INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER
5990-00-644-0090INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER

Frequently Asked Questions

What is NSN 5990-00-268-9068?

NSN 5990-00-268-9068 is a Synchro,control Transformer, manufactured by General Dynamics Motion Control Llc, classified under FSC 5990 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5990-00-268-9068?

NSN 5990-00-268-9068 has 17 cross-referenced part numbers: VCT37-6J4 (General Dynamics Motion Control Llc), 173108 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), SK107606 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 426468 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), SK139814 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier) and 12 more.

What NSN replaces 5990-00-268-9068?

There are 12 known substitutes for 5990-00-268-9068: 5990-00-268-9074, 5990-00-268-9075, 5990-00-268-9081 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of VCT37-6J4?

Key specifications for VCT37-6J4: Shaft Type: ROUND, THREADED SINGLE SHAFT; Terminal Type and Quantity: 5 WIRE LEAD; Test Data Document: 81349-MIL-S-2335 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.).; Electrical Error Angular Range in Minutes: -18.0 TO 18.0. 27 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5990-00-268-9068 still in active supply?

NSN 5990-00-268-9068 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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