PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31783Transformer,power

Freed Transformer Co · NSN 5950-00-754-5929 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-754-5929 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-754-5929. Primary manufacturer part number: 31783.
Features
  • Transformer,power — FSC 5950
  • Winding Operating Current: 1.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
  • Winding Shielding Method: INTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Operating Voltage: 28.50 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Mounting Method: THREADED STUD(S) 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 5950-00-754-5929, 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 17 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-754-5929
Primary Part Number31783
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Winding Operating Current1.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage28.50 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Mounting Facility Quantity4 SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Body Width2.375 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Body Length2.750 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity4 STANDOFF, SOLDER LUG
Winding Operating Voltage120.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Height3.812 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5950-00-051-3827 INTERCHANGEABLE
Transformer,power
5330-00-329-98953-17-8-3 INTERCHANGEABLE
Gasket
Gas Equipment Engineering Corporation, the Dba Geeco
5360-01-020-166131783 INTERCHANGEABLE
Spring,helical,compression
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
3455-01-045-4015ER-32-4 INTERCHANGEABLE
Cutter,milling,end
Brubaker Tool Corp
7540-01-603-0317TRAUMA REGISTRY FORM INTERCHANGEABLE
Form,printed
Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia
Cross-Reference Index
Part NumberManufacturer
31783 PRIMARY Freed Transformer Co (USA)
N240993-7 PRIMARY Raytheon Company Dba Raytheon Co (USA)
Related Parts
5950-00-051-3827INTERCHANGEABLE
TRANSFORMER,POWER
5330-00-329-9895INTERCHANGEABLE
GASKET
3-17-8-3
5360-01-020-1661INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
31783
3455-01-045-4015INTERCHANGEABLE
CUTTER,MILLING,END
ER-32-4
7540-01-603-0317INTERCHANGEABLE
FORM,PRINTED
TRAUMA REGISTRY FORM

Frequently Asked Questions

What is NSN 5950-00-754-5929?

NSN 5950-00-754-5929 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 5950-00-754-5929?

NSN 5950-00-754-5929 has 2 cross-referenced part numbers: 31783 (Freed Transformer Co), N240993-7 (Raytheon Company Dba Raytheon Co).

What NSN replaces 5950-00-754-5929?

There are 5 known substitutes for 5950-00-754-5929: 5950-00-051-3827, 5330-00-329-9895, 5360-01-020-1661 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31783?

Key specifications for 31783: Winding Operating Current: 1.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY; Winding Shielding Method: INTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT; Center to Center Distance Between Mounting Facilities Parallel to Width: 1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Winding Operating Voltage: 28.50 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY. 17 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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