PartsTable TECHNICAL DATA SHEET
NSN 5950-00-078-1774Government record, cited

Transformer, Power5950-00-078-1774

NSN 5950-00-078-1774 · NIIN 000781774 · Part number 2104A1
Electronic Transformer Corp Div Electronic Transformer Corporation · FSC 5950 — Coils and Transformers · FSG 59 — Electrical and Electronic Equipment Components · CAGE 72149
Government record, cited
NSN 5950-00-078-1774 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-078-1774. Manufacturer of record part number: 2104A1.
Also searched as  5950-00-078-1774 · 5950000781774 · NIIN 000781774 · 00-078-1774 · FSC 5950 Coils and Transformers · CAGE 72149 · 2104A1 · A15708 · 77C707806P1 · 9T35Y2041
Nearby stock numbers  ·
Features
  • Transformer,power — FSC 5950
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Inclosure Type: HERMETICALLY SEALED
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.688 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Body Width: 2.060 INCHES NOMINAL IN
  • Body Height: 3.120 INCHES NOMINAL IN
Identification
  • NSN: 5950-00-078-1774
  • NIIN: 000781774
  • FSC: 5950 — Coils and Transformers
  • FSG: 59 — Electrical and Electronic Equipment Components
  • Primary part number: 2104A1
  • Manufacturer: Electronic Transformer Corp Div Electronic Transformer Corporation
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-078-1774, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Electronic Transformer Corp Div Electronic Transformer Corporation. Government technical data includes 20 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-078-1774
Primary Part Number2104A1
Item NameTransformer,power
FSC / FSG5950 / 59 — Coils and Transformers
ManufacturerElectronic Transformer Corp Div Electronic Transformer Corporation
StatusACTIVE
Mounting Facility Quantity4 SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Center to Center Distance Between Mounting Facilities Parallel to Length1.688 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Body Width2.060 INCHES NOMINAL IN
Body Height3.120 INCHES NOMINAL IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Body Length2.310 INCHES NOMINAL IN
Winding Operating Current15.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Reliability IndicatorNOT ESTABLISHED
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.438 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Quantity Per Inch32 SINGLE GROUP
Winding Operating Voltage54.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Winding Operating Voltage25.00 AC VOLTS NOMINAL AND 120.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Terminal Type and Quantity6 TAB, SOLDER LUG
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardPossible hazard — SDS may be required (DLA HMIC P)
Criticality CodeX
⇄ Related Items 1
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5315-01-428-5940C-3150669-B IT7 POSSIBLE MATCH
KEY,MACHINE
Possible match (shared part number)Crane Co Div Valve Div
Cross-Reference Index
Part NumberManufacturer
2104A1 Electronic Transformer Corp Div Electronic Transformer Corporation (USA)
Reference documents
ReferenceMeaning
A15708 C/1 Advisory reference — outside the item-of-supply concept
Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc.
77C707806P1 7/2 Vendor item drawing reference
Lockheed Martin Corporation Div Rms
9T35Y2041 3/9 Design control — primary reference
General Electric Co Specialty Transformer Dept
Related Parts
5315-01-428-5940POSSIBLE MATCH
KEY,MACHINE
C-3150669-B IT7

Frequently Asked Questions

What is NSN 5950-00-078-1774?

NSN 5950-00-078-1774 is a Transformer,power, manufactured by Electronic Transformer Corp Div Electronic Transformer Corporation, classified under FSC 5950, Coils and Transformers. Status: active.

What part numbers are listed for NSN 5950-00-078-1774?

NSN 5950-00-078-1774 has 1 manufacturer part number on file: 2104A1 (Electronic Transformer Corp Div Electronic Transformer Corporation).

What NSN replaces 5950-00-078-1774?

1 possible match (shared part number, not a government interchangeability claim): 5315-01-428-5940. Verify interchangeability with system specifications before substitution.

What are the specifications of 2104A1?

Key specifications for 2104A1: Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED; Center to Center Distance Between Mounting Facilities Parallel to Length: 1.688 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 20 specifications are documented in the U.S. Government catalog.

Is NSN 5950-00-078-1774 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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