PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

26439Transformer,power Autotransforme

Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems · NSN 5950-00-518-2682 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-518-2682 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-518-2682. Primary manufacturer part number: 26439.
Features
  • Transformer,power Autotransforme — FSC 5950
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Overall Diameter: 1.740 INCHES MAXIMUM IN
  • Adjustment Method and Quantity: 1 ADJUSTABLE CORE SINGLE COMPONENT
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Function and Quantity: 1 PRIMARY, VARIABLE AUTOTRANSFORMER TYPE SINGLE COMPONENT
  • Mounting Method: THREADED HOLE(S) SINGLE GROUP
  • Terminal Type and Quantity: 1 CONNECTOR, RECEPTACLE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power Autotransforme, cataloged under National Stock Number 5950-00-518-2682, 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 Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems. 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
NSN5950-00-518-2682
Primary Part Number26439
Item NameTransformer,power Autotransforme
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerOeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
StatusACTIVE
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Overall Diameter1.740 INCHES MAXIMUM IN
Adjustment Method and Quantity1 ADJUSTABLE CORE SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Winding Function and Quantity1 PRIMARY, VARIABLE AUTOTRANSFORMER TYPE SINGLE COMPONENT
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Terminal Type and Quantity1 CONNECTOR, RECEPTACLE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Frequency Rating380.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT
Adjustment Device Drive TypeSHAFT SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Inclosure TypeFULLY INCLOSED
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT
Mounting Bolt Circle Diameter1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Current5.0 AMPERES AC NOMINAL SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Winding Operating Voltage5.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5330-00-019-814126439 INTERCHANGEABLE
Gasket
Napco International Llc Dba Napco International Inc
2990-00-217-3479 INTERCHANGEABLE
Ball8joint,carburet
4720-00-571-530926439 INTERCHANGEABLE
Hose,preformed
Gates Corporation
3120-00-984-7420BTS16LS INTERCHANGEABLE
Bearing,plain,self-Aligning
Morse Industrial Corp Sealmaster Bearing Div Sub of Emerson Electric Co
5325-01-118-3012 INTERCHANGEABLE
Ring,retaining
Cross-Reference Index
Part NumberManufacturer
26439 PRIMARY Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems (USA)
5M1207-001 The Boeing Company Div Defense (USA)
Related Parts
5330-00-019-8141INTERCHANGEABLE
GASKET
26439
2990-00-217-3479INTERCHANGEABLE
BALL8JOINT,CARBURET
4720-00-571-5309INTERCHANGEABLE
HOSE,PREFORMED
26439
3120-00-984-7420INTERCHANGEABLE
BEARING,PLAIN,SELF-ALIGNING
BTS16LS
5325-01-118-3012INTERCHANGEABLE
RING,RETAINING

Frequently Asked Questions

What is NSN 5950-00-518-2682?

NSN 5950-00-518-2682 is a Transformer,power Autotransforme, manufactured by Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-518-2682?

NSN 5950-00-518-2682 has 2 cross-referenced part numbers: 26439 (Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems), 5M1207-001 (The Boeing Company Div Defense).

What NSN replaces 5950-00-518-2682?

There are 5 known substitutes for 5950-00-518-2682: 5330-00-019-8141, 2990-00-217-3479, 4720-00-571-5309 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 26439?

Key specifications for 26439: Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Overall Diameter: 1.740 INCHES MAXIMUM IN; Adjustment Method and Quantity: 1 ADJUSTABLE CORE SINGLE COMPONENT; Reliability Indicator: NOT ESTABLISHED. 18 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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