PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4966Transformer,power

Transformer Technicians Inc · NSN 5950-01-047-1907 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-047-1907 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-047-1907. Primary manufacturer part number: 4966.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Power Rating: 134.75 VOLTS-AMPERES SINGLE COMPONENT SECOND SECONDARY
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Operating Voltage: 385.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
  • Body Width: 4.375 INCHES NOMINAL IN
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Winding Operating Current: 350.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-047-1907, 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 Transformer Technicians Inc. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-047-1907
Primary Part Number4966
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerTransformer Technicians Inc
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Winding Power Rating134.75 VOLTS-AMPERES SINGLE COMPONENT SECOND SECONDARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage385.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Body Width4.375 INCHES NOMINAL IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Operating Current350.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO CORE SINGLE COMPONENT
Thread Series DesignatorUNF SINGLE GROUP
Winding Function and Quantity2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length4.928 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage357.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Winding Operating Voltage105.00 AC VOLTS NOMINAL AND 110.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 120.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
Nominal Thread Size0.190 INCHES SINGLE GROUP IN
Winding Power Rating17.85 VOLTS-AMPERES SINGLE COMPONENT FIRST SECONDARY
Terminal Type and Quantity14 TAB, SOLDER LUG
Body Length5.875 INCHES NOMINAL IN
Body Height6.375 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width3.438 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Quantity Per Inch32 SINGLE GROUP
Inclosure TypeOPEN
Winding Operating Current50.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Frequency Rating50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5365-00-019-989940000780 INTERCHANGEABLE
Ring,externally Threaded
Akron Brass Company
5950-00-104-274211205 INTERCHANGEABLE
Transformer,power
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
6625-00-255-58154966 INTERCHANGEABLE
Meter,electrical Frequency
Avo Intl
5330-00-285-1332 INTERCHANGEABLE
Seal,plain Encased
5930-00-660-5584 INTERCHANGEABLE
Switch,toggle
1650-00-819-66094966B INTERCHANGEABLE
Cylinder Assembly,actuating,line
Equipment & Supply Inc Dba Equipment & Supply Inc
Cross-Reference Index
Part NumberManufacturer
4966 Transformer Technicians Inc (USA)
A9272 Aeronautical Communications Equipment Inc (USA)
Related Parts
5365-00-019-9899INTERCHANGEABLE
RING,EXTERNALLY THREADED
40000780
5950-00-104-2742INTERCHANGEABLE
TRANSFORMER,POWER
11205
6625-00-255-5815INTERCHANGEABLE
METER,ELECTRICAL FREQUENCY
4966
5330-00-285-1332INTERCHANGEABLE
SEAL,PLAIN ENCASED
5930-00-660-5584INTERCHANGEABLE
SWITCH,TOGGLE
1650-00-819-6609INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
4966B

Frequently Asked Questions

What is NSN 5950-01-047-1907?

NSN 5950-01-047-1907 is a Transformer,power, manufactured by Transformer Technicians Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-047-1907?

NSN 5950-01-047-1907 has 2 cross-referenced part numbers: 4966 (Transformer Technicians Inc), A9272 (Aeronautical Communications Equipment Inc).

What NSN replaces 5950-01-047-1907?

There are 6 known substitutes for 5950-01-047-1907: 5365-00-019-9899, 5950-00-104-2742, 6625-00-255-5815 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4966?

Key specifications for 4966: Reliability Indicator: NOT ESTABLISHED; Winding Power Rating: 134.75 VOLTS-AMPERES SINGLE COMPONENT SECOND SECONDARY; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Winding Operating Voltage: 385.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY. 24 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com