PartsTable TECHNICAL DATA SHEET
NSN 5950-01-504-9790Government record, cited

Transformer, Power5950-01-504-9790

NSN 5950-01-504-9790 · NIIN 015049790 · Part number KT4050
Siemens Energy and Automation Inc Ite Circuit Protection Div · FSC 5950 — Coils and Transformers · FSG 59 — Electrical and Electronic Equipment Components · CAGE 66842
Government record, cited
NSN 5950-01-504-9790 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-504-9790. Manufacturer of record part number: KT4050.
Also searched as  5950-01-504-9790 · 5950015049790 · NIIN 015049790 · 01-504-9790 · FSC 5950 Coils and Transformers · CAGE 66842 · KT4050
Nearby stock numbers  ·
Features
  • Transformer,power — FSC 5950
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Inclosure Type: FULLY INCLOSED
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Mounting Method: SLOT SINGLE GROUP
  • Winding Function and Quantity: 2 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Features Provided: W/OVERLOAD PROTECTION
Identification
  • NSN: 5950-01-504-9790
  • NIIN: 015049790
  • FSC: 5950 — Coils and Transformers
  • FSG: 59 — Electrical and Electronic Equipment Components
  • Primary part number: KT4050
  • Manufacturer: Siemens Energy and Automation Inc Ite Circuit Protection Div
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-504-9790, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Siemens Energy and Automation Inc Ite Circuit Protection Div. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-504-9790
Primary Part NumberKT4050
Item NameTransformer,power
FSC / FSG5950 / 59 — Coils and Transformers
ManufacturerSiemens Energy and Automation Inc Ite Circuit Protection Div
StatusACTIVE
Mounting Facility Quantity4 SINGLE GROUP
Inclosure TypeFULLY INCLOSED
Center to Center Distance Between Mounting Facilities Parallel to Length2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting MethodSLOT SINGLE GROUP
Winding Function and Quantity2 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Features ProvidedW/OVERLOAD PROTECTION
Winding Operating Current2.5 AMPERES AC MINIMUM AND 1.25 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Reliability IndicatorNOT ESTABLISHED
Frequency Rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage24.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Winding Operating Voltage480.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND PRIMARY
Winding Operating Voltage240.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST PRIMARY
Terminal Type and Quantity6 SCREW
Mounting Slot Width0.375 INCHES NOMINAL SINGLE GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardPossible hazard — SDS may be required (DLA HMIC P)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
KT4050 PRIMARY Siemens Energy and Automation Inc Ite Circuit Protection Div (USA)
No interchangeability data on file.
Other items in FSC 5950 — Coils and Transformers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5950-00-000-0146
TRANSFORMER,POWER
5950-00-001-1372
COIL,RADIO FREQUENCY
5950-00-001-1386
COVER,ELECTRICAL TRANSFORMER
5950-00-001-1410
5950-00-001-1410 · Item name not on file
5950-00-001-1411
5950-00-001-1411 · Item name not on file
5950-00-001-1412
5950-00-001-1412 · Item name not on file
5950-00-001-1413
5950-00-001-1413 · Item name not on file
5950-00-001-1414
5950-00-001-1414 · Item name not on file

Frequently Asked Questions

What is NSN 5950-01-504-9790?

NSN 5950-01-504-9790 is a Transformer,power, manufactured by Siemens Energy and Automation Inc Ite Circuit Protection Div, classified under FSC 5950, Coils and Transformers. Status: active.

What part numbers are listed for NSN 5950-01-504-9790?

NSN 5950-01-504-9790 has 1 manufacturer part number on file: KT4050 (Siemens Energy and Automation Inc Ite Circuit Protection Div).

What are the specifications of KT4050?

Key specifications for KT4050: Overall Height: 2.560 INCHES NOMINAL IN; Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Center to Center Distance Between Mounting Facilities Parallel to Length: 2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 16 specifications are documented in the U.S. Government catalog.

Is NSN 5950-01-504-9790 hazardous material?

Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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