PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4-110-3Transformer,power

Eaton Corp Circuit Protective Devices Div Lincoln Plant · NSN 5950-00-504-0526 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-504-0526 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-504-0526. Primary manufacturer part number: 4-110-3.
Features
  • Transformer,power — FSC 5950
  • Body Height: 10.688 INCHES NOMINAL IN
  • Distance Between Mounting Facility Centers: 6.062 INCHES NOMINAL AND 3.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Inclosure Type: OPEN
  • Winding Operating Voltage: 440.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Operating Voltage: 110.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-504-0526, 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 Eaton Corp Circuit Protective Devices Div Lincoln Plant. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-504-0526
Primary Part Number4-110-3
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerEaton Corp Circuit Protective Devices Div Lincoln Plant
StatusACTIVE
Body Height10.688 INCHES NOMINAL IN
Distance Between Mounting Facility Centers6.062 INCHES NOMINAL AND 3.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypeOPEN
Winding Operating Voltage440.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage110.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Terminal Type and Quantity4 TAB, SOLDER LUG
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Maximum Transformer Power Rating335.0 VOLT-AMPERE SINGLE COMPONENT
Body Width4.625 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Body Length7.062 INCHES NOMINAL IN
Cooling MethodSELF-COOLED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5940-00-143-4771MS25036-103 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
5977-00-238-7203 INTERCHANGEABLE
Holder,electrical Contact Brush
5935-00-561-49541260T INTERCHANGEABLE
Connector,plug,electrical
Marlin Mfg. Corp Div Marlin Manufacturing Corporation
3120-00-661-3999204048PC4 INTERCHANGEABLE
Bearing,sleeve
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6240-00-889-17991157 INTERCHANGEABLE
Lamp,incandescent
American National Standards Institute Incorporated Dba American National Standards Institute
5310-00-939-482441103 INTERCHANGEABLE
Washer,concave
Jergens Inc Div Tooling Components Division
2915-00-966-935075801 INTERCHANGEABLE
Lever,follow Up
Triumph Engine Control Systems Llc
5330-01-162-7816 INTERCHANGEABLE
Gasket
Cross-Reference Index
Part NumberManufacturer
4-110-3 Eaton Corp Circuit Protective Devices Div Lincoln Plant (USA)
4-110-3 Eaton Corp Opns & Technical Center (USA)
42-110-3 Eaton Corp Opns & Technical Center (USA)
Related Parts
5940-00-143-4771INTERCHANGEABLE
TERMINAL,LUG
MS25036-103
5977-00-238-7203INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
5935-00-561-4954INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
1260T
3120-00-661-3999INTERCHANGEABLE
BEARING,SLEEVE
204048PC4
6240-00-889-1799INTERCHANGEABLE
LAMP,INCANDESCENT
1157
5310-00-939-4824INTERCHANGEABLE
WASHER,CONCAVE
41103
2915-00-966-9350INTERCHANGEABLE
LEVER,FOLLOW UP
75801
5330-01-162-7816INTERCHANGEABLE
GASKET

Frequently Asked Questions

What is NSN 5950-00-504-0526?

NSN 5950-00-504-0526 is a Transformer,power, manufactured by Eaton Corp Circuit Protective Devices Div Lincoln Plant, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-504-0526?

NSN 5950-00-504-0526 has 3 cross-referenced part numbers: 4-110-3 (Eaton Corp Circuit Protective Devices Div Lincoln Plant), 4-110-3 (Eaton Corp Opns & Technical Center), 42-110-3 (Eaton Corp Opns & Technical Center).

What NSN replaces 5950-00-504-0526?

There are 8 known substitutes for 5950-00-504-0526: 5940-00-143-4771, 5977-00-238-7203, 5935-00-561-4954 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4-110-3?

Key specifications for 4-110-3: Body Height: 10.688 INCHES NOMINAL IN; Distance Between Mounting Facility Centers: 6.062 INCHES NOMINAL AND 3.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Inclosure Type: OPEN; Winding Operating Voltage: 440.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY. 14 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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