PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

52665-1Transformer,power

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 5950-00-646-2104 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-646-2104 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-646-2104. Primary manufacturer part number: 52665-1.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Body Width: 4.094 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 7.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Body Length: 8.156 INCHES NOMINAL IN
  • Mounting Facility Quantity: 4 SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-646-2104, is classified within Federal Supply Class 5950 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-646-2104
Primary Part Number52665-1
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusCANCELLED
Reliability IndicatorNOT ESTABLISHED
Body Width4.094 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length7.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Width3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Body Length8.156 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
Transformer Winding Connection TypeWYE-WYE
Winding Operating Current72.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT
Terminal Type and Quantity4 STANDOFF, SOLDERLESS LUG AND 3 STANDOFF, THREADED STUD
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Nominal Thread Size0.375 INCHES SINGLE GROUP IN
Body Height6.906 INCHES NOMINAL IN
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Input-Output Phase RelationshipTHREE PHASE TO THREE PHASE SINGLE COMPONENT
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Thread Quantity Per Inch16 SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Winding Operating Voltage117.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Operating Voltage7.30 AC KILOVOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
6685-00-085-4969100250 INTERCHANGEABLE
Gage,pressure,dial Indicating
Provision, Inc. Dba Provision Inc
2520-00-357-4973106841 INTERCHANGEABLE
Valve Dual Brake Control
Williams Controls Inc
4210-01-247-8451 INTERCHANGEABLE
Control
5895-01-391-2706100250 INTERCHANGEABLE
Communications Control Set
Northrop Grumman Systems Corporation Dba California Microwave Systems
4820-01-469-193776-504-01 INTERCHANGEABLE
Valve,ball
Conbraco Industries Inc
6685-01-538-409052665-1 INTERCHANGEABLE
Thermocouple,contact
L3 Technologies, Inc. Div L3harris Edo Western Corporation
Cross-Reference Index
Part NumberManufacturer
52665-1 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
3T 967 Rayco Electronic Manufacturing, Inc. Div Rayco Electronics Mfg Inc (USA)
100250 Reverse Engineering Corp (USA)
Related Parts
6685-00-085-4969INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
100250
2520-00-357-4973INTERCHANGEABLE
VALVE DUAL BRAKE CONTROL
106841
4210-01-247-8451INTERCHANGEABLE
CONTROL
5895-01-391-2706INTERCHANGEABLE
COMMUNICATIONS CONTROL SET
100250
4820-01-469-1937INTERCHANGEABLE
VALVE,BALL
76-504-01
6685-01-538-4090INTERCHANGEABLE
THERMOCOUPLE,CONTACT
52665-1

Frequently Asked Questions

What is NSN 5950-00-646-2104?

NSN 5950-00-646-2104 is a Transformer,power, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-646-2104?

NSN 5950-00-646-2104 has 3 cross-referenced part numbers: 52665-1 (L3harris Technologies, Inc Div Space & Airborne Systems), 3T 967 (Rayco Electronic Manufacturing, Inc. Div Rayco Electronics Mfg Inc), 100250 (Reverse Engineering Corp).

What NSN replaces 5950-00-646-2104?

There are 6 known substitutes for 5950-00-646-2104: 6685-00-085-4969, 2520-00-357-4973, 4210-01-247-8451 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 52665-1?

Key specifications for 52665-1: Overall Length: 8.156 INCHES NOMINAL IN; Reliability Indicator: NOT ESTABLISHED; Body Width: 4.094 INCHES NOMINAL IN; Center to Center Distance Between Mounting Facilities Parallel to Length: 7.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-646-2104 still in active supply?

NSN 5950-00-646-2104 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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