PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8425Transformer,power

Berkshire Transformer · NSN 5950-01-186-0001 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-186-0001 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-186-0001. Primary manufacturer part number: 8425.
Features
  • Transformer,power — FSC 5950
  • Mounting Facility Quantity: 2 SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Terminal Type and Quantity: 4 WIRE LEAD
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Distance Between Mounting Facility Centers: 2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Body Width: 1.375 INCHES NOMINAL IN
  • Mounting Method: UNTHREADED HOLE(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 5950-01-186-0001, 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 Berkshire Transformer. Government technical data includes 15 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-186-0001
Primary Part Number8425
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerBerkshire Transformer
StatusACTIVE
Mounting Facility Quantity2 SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Terminal Type and Quantity4 WIRE LEAD
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Distance Between Mounting Facility Centers2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Width1.375 INCHES NOMINAL IN
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Winding Operating Voltage24.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Body Height1.438 INCHES MAXIMUM IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Current0.1 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Mounting Hole Diameter0.187 INCHES NOMINAL SINGLE GROUP IN
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6145-00-125-07428425 INTERCHANGEABLE
Cable,special Purpose,electrical
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
5975-00-177-6408TC724A INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
6625-00-323-0227 INTERCHANGEABLE
Tester
2920-00-405-4314 INTERCHANGEABLE
Generator,engine Accessory
3110-00-409-300569407 INTERCHANGEABLE
Bearing,roller,cylindrical
Parker Hannifin Corporation Div Hydraulic Systems Division
1680-00-452-4526A501 INTERCHANGEABLE
Head Operating
L'hotellier SAS
5930-00-583-16529099262 INTERCHANGEABLE
Switch,push
U S Army Tank Automotive Command Amsta-Im-Mm
5915-00-681-7574A501 INTERCHANGEABLE
Filter,radio Frequency Interfere
Mtk Electronics Inc
2530-00-872-9301F35325 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5935-00-894-2451 INTERCHANGEABLE
Adapter,connector
Cross-Reference Index
Part NumberManufacturer
A501 Lewis Corp (USA)
8425 Lewis Corp (USA)
8425 PRIMARY Berkshire Transformer (USA)
Related Parts
6145-00-125-0742INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
8425
5975-00-177-6408INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
TC724A
6625-00-323-0227INTERCHANGEABLE
TESTER
2920-00-405-4314INTERCHANGEABLE
GENERATOR,ENGINE ACCESSORY
3110-00-409-3005INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
69407
1680-00-452-4526INTERCHANGEABLE
HEAD OPERATING
A501
5930-00-583-1652INTERCHANGEABLE
SWITCH,PUSH
9099262
5915-00-681-7574INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
A501
2530-00-872-9301INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
F35325
5935-00-894-2451INTERCHANGEABLE
ADAPTER,CONNECTOR
5935-01-051-8162INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
A501
5940-01-054-0824INTERCHANGEABLE
TERMINAL,STUD
A-50-1

Frequently Asked Questions

What is NSN 5950-01-186-0001?

NSN 5950-01-186-0001 is a Transformer,power, manufactured by Berkshire Transformer, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-186-0001?

NSN 5950-01-186-0001 has 3 cross-referenced part numbers: A501 (Lewis Corp), 8425 (Lewis Corp), 8425 (Berkshire Transformer).

What NSN replaces 5950-01-186-0001?

There are 12 known substitutes for 5950-01-186-0001: 6145-00-125-0742, 5975-00-177-6408, 6625-00-323-0227 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8425?

Key specifications for 8425: Mounting Facility Quantity: 2 SINGLE GROUP; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT; Terminal Type and Quantity: 4 WIRE LEAD; Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY. 16 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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