PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8128Transformer,power

Berkshire Transformer · NSN 5950-00-221-8316 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-221-8316 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-221-8316. Primary manufacturer part number: 8128.
Features
  • Transformer,power — FSC 5950
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Winding Operating Current: 120.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Terminal Type and Quantity: 4 TAB, SOLDER LUG
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • 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 5950-00-221-8316, 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 20 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-221-8316
Primary Part Number8128
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerBerkshire Transformer
StatusACTIVE
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Operating Current120.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Terminal Type and Quantity4 TAB, SOLDER LUG
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Body Length1.625 INCHES NOMINAL IN
Body Width1.625 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Mounting Facility Quantity4 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Quantity Per Inch32 SINGLE GROUP
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO CORE SINGLE COMPONENT
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Body Height2.375 INCHES NOMINAL IN
Inclosure TypeHERMETICALLY SEALED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3110-00-100-0302 INTERCHANGEABLE
Cup,tapered Roller Bearing
5120-00-494-18465120-494-1846 INTERCHANGEABLE
Remover and Replace
General Services Administration Federal Supply Service
6520-00-850-5126 INTERCHANGEABLE
File,pulp Canal,dental
5975-00-889-7634 INTERCHANGEABLE
Brace,crossarm
5961-00-911-6015 INTERCHANGEABLE
Transistor
5975-01-433-7646 INTERCHANGEABLE
Plate,wall,electrical
5340-01-462-7900741059-A INTERCHANGEABLE
Plate,mounting
L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
Cross-Reference Index
Part NumberManufacturer
8128 PRIMARY Berkshire Transformer (USA)
695-2-40030 Cae Usa Inc. (USA)
Related Parts
3110-00-100-0302INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
5120-00-494-1846INTERCHANGEABLE
REMOVER AND REPLACE
5120-494-1846
6520-00-850-5126INTERCHANGEABLE
FILE,PULP CANAL,DENTAL
5975-00-889-7634INTERCHANGEABLE
BRACE,CROSSARM
5961-00-911-6015INTERCHANGEABLE
TRANSISTOR
5975-01-433-7646INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
5340-01-462-7900INTERCHANGEABLE
PLATE,MOUNTING
741059-A

Frequently Asked Questions

What is NSN 5950-00-221-8316?

NSN 5950-00-221-8316 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 5950-00-221-8316?

NSN 5950-00-221-8316 has 2 cross-referenced part numbers: 8128 (Berkshire Transformer), 695-2-40030 (Cae Usa Inc.).

What NSN replaces 5950-00-221-8316?

There are 7 known substitutes for 5950-00-221-8316: 3110-00-100-0302, 5120-00-494-1846, 6520-00-850-5126 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8128?

Key specifications for 8128: Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT; Winding Operating Current: 120.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY; Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 20 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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