PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15CX4BSynchro,differential Transmitter

General Electric Co Outdoor Breaker Business Section · NSN 5990-00-378-1449 · FSC 5990 · No Item Name Available
Verified by PartsTable
NSN 5990-00-378-1449 — this item is cataloged by the U.S. Government under National Stock Number 5990-00-378-1449. Primary manufacturer part number: 15CX4B.
Features
  • Synchro,differential Transmitter — FSC 5990
  • Undercut Width: 0.0780 INCHES NOMINAL IN
  • Flange Diameter: 1.4370 INCHES NOMINAL IN
  • Pilot Diameter: 0.8750 INCHES NOMINAL IN
  • Body Style: STANDARD ROUND B
  • Shoulder Diameter: 1.3120 INCHES NOMINAL IN
  • Flange Thickness: 0.0930 INCHES NOMINAL IN
  • Body Material: STEEL CORROSION RESISTING
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Synchro,differential Transmitter, cataloged under National Stock Number 5990-00-378-1449, 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 Electric Co Outdoor Breaker Business Section. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5990-00-378-1449
Primary Part Number15CX4B
Item NameSynchro,differential Transmitter
FSC / FSG5990 / 59 — No Item Name Available
ManufacturerGeneral Electric Co Outdoor Breaker Business Section
StatusACTIVE
Undercut Width0.0780 INCHES NOMINAL IN
Flange Diameter1.4370 INCHES NOMINAL IN
Pilot Diameter0.8750 INCHES NOMINAL IN
Body StyleSTANDARD ROUND B
Shoulder Diameter1.3120 INCHES NOMINAL IN
Flange Thickness0.0930 INCHES NOMINAL IN
Body MaterialSTEEL CORROSION RESISTING
Shaft Thread DirectionRIGHT-HAND SINGLE SHAFT
Shaft Thread Series DesignatorUNF SINGLE SHAFT
Plus J Zrs Reactance in Ohms742.00 NOMINAL
Stator Input Electrical Power Rating1200.0 MILLIWATTS NOMINAL
Shaft Thread Class2A SINGLE SHAFT A
Terminal LocationREAR
Zrs Resistance in Ohms105.00 NOMINAL
Body Size15
Transformation Ratio0.685 ROTOR TO STATOR NOMINAL
Electrical Error Angular Range in Minutes-6.0 TO 6.0
Maximum Total Null Voltage Output in Millivolts Per Volt60.00
Terminal Type and Quantity5 WIRE LEAD
Shaft Nominal Thread Size0.185 INCHES SINGLE SHAFT IN
Length0.1320 INCHES NOMINAL SHOULDER IN
Stator DC Resistance in Ohms120.00 NOMINAL
Stator Input Current Rating85.0 MILLIAMPERES NOMINAL
Maximum Fundamental Null Voltage in Millivolts Per Volt40.00 INPUT
Pilot Length0.0400 INCHES NOMINAL IN
Mounting Surface to Terminal End Distance1.6400 INCHES MAXIMUM IN
Zro Resistance in Ohms170.00 NOMINAL
Actuator Friction Torque at Plus 25 Deg Celsius6.0 CENTIMETER-GRAMS NOMINAL CM
Phase Shift Angle in Deg5.100 INPUT TO OUTPUT NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5990-00-677-6468 INTERCHANGEABLE
Synchro,transmitter
5990-00-733-2342 INTERCHANGEABLE
Synchro,transmitter
Cross-Reference Index
Part NumberManufacturer
15CX4B General Electric Co Outdoor Breaker Business Section (USA)
Related Parts
5990-00-677-6468INTERCHANGEABLE
SYNCHRO,TRANSMITTER
5990-00-733-2342INTERCHANGEABLE
SYNCHRO,TRANSMITTER

Frequently Asked Questions

What is NSN 5990-00-378-1449?

NSN 5990-00-378-1449 is a Synchro,differential Transmitter, manufactured by General Electric Co Outdoor Breaker Business Section, classified under FSC 5990 (No Item Name Available). Status: active.

What are the part numbers for NSN 5990-00-378-1449?

NSN 5990-00-378-1449 has 1 cross-referenced part number: 15CX4B (General Electric Co Outdoor Breaker Business Section).

What NSN replaces 5990-00-378-1449?

There are 2 known substitutes for 5990-00-378-1449: 5990-00-677-6468, 5990-00-733-2342. Verify interchangeability with system specifications before substitution.

What are the specifications of 15CX4B?

Key specifications for 15CX4B: Overall Length: 2.2640 INCHES MAXIMUM IN; Undercut Width: 0.0780 INCHES NOMINAL IN; Flange Diameter: 1.4370 INCHES NOMINAL IN; Pilot Diameter: 0.8750 INCHES NOMINAL 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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