PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

37475Transformer,power

Freed Transformer Co · NSN 5950-00-543-9778 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-543-9778 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-543-9778. Primary manufacturer part number: 37475.
Features
  • Transformer,power — FSC 5950
  • Inclosure Type: FULLY INCLOSED
  • Winding Operating Voltage: 5.00 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
  • Winding Operating Current: 2.0 AMPERES AC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY
  • Winding Operating Current: 5.0 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
  • Reliability Indicator: NOT ESTABLISHED
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Winding Operating Voltage: 105.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 125.00 AC VOLTS NOMINAL AND 210.00 AC VOLTS NOMINAL AND 230.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-543-9778, 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 Freed Transformer Co. Government technical data includes 25 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-543-9778
Primary Part Number37475
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Inclosure TypeFULLY INCLOSED
Winding Operating Voltage5.00 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Winding Operating Current2.0 AMPERES AC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY
Winding Operating Current5.0 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Reliability IndicatorNOT ESTABLISHED
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Operating Voltage105.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 125.00 AC VOLTS NOMINAL AND 210.00 AC VOLTS NOMINAL AND 230.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Thread Quantity Per Inch40 SINGLE GROUP
Body Height4.250 INCHES NOMINAL IN
Winding Operating Current2.0 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Length3.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Function and Quantity1 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
Frequency Rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Operating Current100.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Width2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Voltage680.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Body Length4.750 INCHES NOMINAL IN
Body Width2.875 INCHES NOMINAL IN
Nominal Thread Size0.112 INCHES SINGLE GROUP IN
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Terminal Type and Quantity17 TAB, SOLDER LUG
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5935-00-660-548832-23 INTERCHANGEABLE
Connector,plug,electrical
Te Connectivity Corporation Dba Microdot Products
Cross-Reference Index
Part NumberManufacturer
37475 PRIMARY Freed Transformer Co (USA)
TF196 The Technical Material Corporation Dba T M C (USA)
Related Parts
5935-00-660-5488INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
32-23

Frequently Asked Questions

What is NSN 5950-00-543-9778?

NSN 5950-00-543-9778 is a Transformer,power, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-543-9778?

NSN 5950-00-543-9778 has 2 cross-referenced part numbers: 37475 (Freed Transformer Co), TF196 (The Technical Material Corporation Dba T M C).

What NSN replaces 5950-00-543-9778?

There is 1 known substitute for 5950-00-543-9778: 5935-00-660-5488. Verify interchangeability with system specifications before substitution.

What are the specifications of 37475?

Key specifications for 37475: Inclosure Type: FULLY INCLOSED; Winding Operating Voltage: 5.00 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY; Winding Operating Current: 2.0 AMPERES AC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY; Winding Operating Current: 5.0 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY. 25 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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