PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5259Transformer,power

Berkshire Transformer · NSN 5950-00-797-1784 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-797-1784 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-797-1784. Primary manufacturer part number: 5259.
Features
  • Transformer,power — FSC 5950
  • Terminal Type and Quantity: 4 WIRE LEAD
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Mounting Method: TAB SINGLE GROUP
  • Inclosure Type: FULLY INCLOSED
  • Reliability Indicator: NOT ESTABLISHED
  • 1 verified cross-reference
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-797-1784, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-797-1784
Primary Part Number5259
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerBerkshire Transformer
StatusACTIVE
Terminal Type and Quantity4 WIRE LEAD
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting MethodTAB SINGLE GROUP
Inclosure TypeFULLY INCLOSED
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
2995-00-013-3707DS-934405 INTERCHANGEABLE
Plunger,dual Control
Eaton Aerospace, Llc Dba Jackson South
4510-00-062-0134 INTERCHANGEABLE
Faucet,double
5360-00-231-3114525-9 INTERCHANGEABLE
Spring,helical,compression
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
4820-00-275-222720261 INTERCHANGEABLE
Cock,drain
Jewell Instruments Llc
3120-00-359-13331229R720 INTERCHANGEABLE
Bearing,washer,thrust
Meritor Heavy Vehicle Systems, Llc
5330-00-765-2918G8-179160 INTERCHANGEABLE
Gasket
Norwalk Compreseer Company Inc Dba Norwalk Compressor Company
5915-00-981-3419 INTERCHANGEABLE
Filter,low Pass
5975-01-004-15355259 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
5307-01-179-90035259 INTERCHANGEABLE
Stud,plain
Erie Malleable Iron Co
5120-01-399-9615J5259 INTERCHANGEABLE
Extension,socket Wrench
The Stanley Works Dba Stanley Proto
Cross-Reference Index
Part NumberManufacturer
5259 Berkshire Transformer (USA)
Related Parts
2995-00-013-3707INTERCHANGEABLE
PLUNGER,DUAL CONTROL
DS-934405
4510-00-062-0134INTERCHANGEABLE
FAUCET,DOUBLE
5360-00-231-3114INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
525-9
4820-00-275-2227INTERCHANGEABLE
COCK,DRAIN
20261
3120-00-359-1333INTERCHANGEABLE
BEARING,WASHER,THRUST
1229R720
5330-00-765-2918INTERCHANGEABLE
GASKET
G8-179160
5915-00-981-3419INTERCHANGEABLE
FILTER,LOW PASS
5975-01-004-1535INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5259
5307-01-179-9003INTERCHANGEABLE
STUD,PLAIN
5259
5120-01-399-9615INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
J5259
3020-01-529-9505INTERCHANGEABLE
GEAR,SPUR
5259

Frequently Asked Questions

What is NSN 5950-00-797-1784?

NSN 5950-00-797-1784 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 5950-00-797-1784?

NSN 5950-00-797-1784 has 1 cross-referenced part number: 5259 (Berkshire Transformer).

What NSN replaces 5950-00-797-1784?

There are 11 known substitutes for 5950-00-797-1784: 2995-00-013-3707, 4510-00-062-0134, 5360-00-231-3114 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5259?

Key specifications for 5259: Terminal Type and Quantity: 4 WIRE LEAD; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Mounting Method: TAB SINGLE GROUP. 9 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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