PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

TX37-6E4Synchro,transmitter

General Dynamics Motion Control Llc · NSN 5990-00-636-4151 · FSC 5990 · No Item Name Available
Verified by PartsTable
NSN 5990-00-636-4151 — this item is cataloged by the U.S. Government under National Stock Number 5990-00-636-4151. Primary manufacturer part number: TX37-6E4.
Features
  • Synchro,transmitter — FSC 5990
  • Body Style: STANDARD ROUND DOUBLE FLANGE B
  • Flange Thickness: 0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
  • Flange Diameter: 3.6230 INCHES MINIMUM AND 3.6250 INCHES MAXIMUM IN
  • Pilot Diameter: 1.6300 INCHES MAXIMUM IN
  • Shoulder Diameter: 3.3750 INCHES MAXIMUM IN
  • Terminal Type and Quantity: 5 SCREW
  • Length: 1.2450 INCHES MINIMUM AND 1.2550 INCHES MAXIMUM SHOULDER IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Synchro,transmitter, cataloged under National Stock Number 5990-00-636-4151, 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 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 21 commercial cross-references from 9 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
NSN5990-00-636-4151
Primary Part NumberTX37-6E4
Item NameSynchro,transmitter
FSC / FSG5990 / 59 — No Item Name Available
ManufacturerGeneral Dynamics Motion Control Llc
StatusCANCELLED
Body StyleSTANDARD ROUND DOUBLE FLANGE B
Flange Thickness0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
Flange Diameter3.6230 INCHES MINIMUM AND 3.6250 INCHES MAXIMUM IN
Pilot Diameter1.6300 INCHES MAXIMUM IN
Shoulder Diameter3.3750 INCHES MAXIMUM IN
Terminal Type and Quantity5 SCREW
Length1.2450 INCHES MINIMUM AND 1.2550 INCHES MAXIMUM SHOULDER IN
Maximum Temp Rise50.0 CELSIUS DEGC
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.).
Distance Between Flanges1.8070 INCHES MINIMUM AND 1.8170 INCHES MAXIMUM IN
Pilot Length0.1750 INCHES NOMINAL IN
Shaft Diameter0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM SINGLE SHAFT IN
Torque Gradient Per Angular Deg0.400 INCH-OUNCES MINIMUM IN
Body MaterialSTEEL CORROSION RESISTING
Shaft Thread DirectionRIGHT-HAND SINGLE SHAFT
Shaft Thread Length0.1770 INCHES MINIMUM AND 0.1970 INCHES MAXIMUM SINGLE SHAFT IN
Fragility FactorMODERATELY RUGGED
Rotor Input Current Rating600.0 MILLIAMPERES MAXIMUM
Rotor Input Voltage Rating in Volts115.0 NOMINAL
Rotor Input Electrical Power Rating7.0 WATTS MAXIMUM
Shaft TypeROUND, THREADED SINGLE SHAFT
Shaft Length0.7600 INCHES MINIMUM AND 0.7800 INCHES MAXIMUM SINGLE SHAFT IN
Shaft Thread Series DesignatorUNF SINGLE SHAFT
Specification/standard Data81349-MIL-S-2335 GOVERNMENT SPECIFICATION
Shaft Nominal Thread Size0.250 INCHES SINGLE SHAFT IN
Shaft Thread Class2A SINGLE SHAFT A
Body Size5
Frequency in Hertz60.0 NOMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5990-00-268-9068 INTERCHANGEABLE
Synchro,control Transformer
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
2530-00-495-8623388082C91 INTERCHANGEABLE
Parts Kit,hydraulic Brake Wheel
Navistar Intl Corp Truck Br Ohio Plant
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
Cross-Reference Index
Part NumberManufacturer
MIL-S-2335 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3563950-0001 Honeywell Intl Inc Defense Avionics Systems (USA)
TX37-6E4 PRIMARY General Dynamics Motion Control Llc (USA)
212818 Naval Sea Systems Command (USA)
173113 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
561792-4 General Dynamics Motion Control Llc (USA)
139D688 Lockheed Martin Corporation Div Rms (USA)
5HG General Dynamics Motion Control Llc (USA)
852485 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
2340-1A Honeywell Intl Inc Defense Avionics Systems Former Bendix Flight Systems Fiv Montrose Opns (USA)
VTX37-6E4 General Dynamics Motion Control Llc (USA)
852485 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
SK139518 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
561792-4 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
213417 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
7410366 P001 Lockheed Martin Corporation Div Rms (USA)
SK137160 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
494550-226 L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA)
5HGMK6 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
524059 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5990-00-268-9068INTERCHANGEABLE
SYNCHRO,CONTROL TRANSFORMER
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
2530-00-495-8623INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE WHEEL
388082C91
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
5990-00-636-4152INTERCHANGEABLE
SYNCHRO,TRANSMITTER
0S01702

Frequently Asked Questions

What is NSN 5990-00-636-4151?

NSN 5990-00-636-4151 is a Synchro,transmitter, manufactured by General Dynamics Motion Control Llc, classified under FSC 5990 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5990-00-636-4151?

NSN 5990-00-636-4151 has 21 cross-referenced part numbers: MIL-S-2335 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 3563950-0001 (Honeywell Intl Inc Defense Avionics Systems), TX37-6E4 (General Dynamics Motion Control Llc), 212818 (Naval Sea Systems Command), 173113 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier) and 16 more.

What NSN replaces 5990-00-636-4151?

There are 12 known substitutes for 5990-00-636-4151: 5990-00-268-9068, 5990-00-268-9074, 5990-00-268-9075 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of TX37-6E4?

Key specifications for TX37-6E4: Body Style: STANDARD ROUND DOUBLE FLANGE B; Flange Thickness: 0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN; Overall Length: 6.3600 INCHES MAXIMUM IN; Flange Diameter: 3.6230 INCHES MINIMUM AND 3.6250 INCHES MAXIMUM IN. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5990-00-636-4151 still in active supply?

NSN 5990-00-636-4151 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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