PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3-12475Transformer,power

Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc. · NSN 5950-00-978-2552 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-978-2552 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-978-2552. Primary manufacturer part number: 3-12475.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Frequency Rating: 300.0 HERTZ MINIMUM AND 3.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Operating Voltage: 600.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Mounting Method: THREADED HOLE(S) SINGLE GROUP
  • Body Length: 1.000 INCHES MAXIMUM IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-978-2552, 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 Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc.. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-978-2552
Primary Part Number3-12475
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerTe Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc.
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Frequency Rating300.0 HERTZ MINIMUM AND 3.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage600.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Body Length1.000 INCHES MAXIMUM IN
Terminal Type and Quantity7 TAB, SOLDER LUG
Inclosure TypeHERMETICALLY SEALED
Body Width1.000 INCHES MAXIMUM IN
Winding Operating Voltage300.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
Winding Operating Current40.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Body Height1.375 INCHES MAXIMUM IN
Distance Between Mounting Facility Centers0.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Function and Quantity2 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting Facility Quantity2 SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5133-00-227-9662 INTERCHANGEABLE
Drill,twist
5815-00-482-8810312475 INTERCHANGEABLE
Teletypewriter Subassembly
Telemechanics Inc
5999-00-795-478044020 INTERCHANGEABLE
Contact,electrical
L3harris Technologies, Inc. Div Space and Airborne Systems
2925-00-891-928510-378175-3 INTERCHANGEABLE
Ignition Unit
Unison Industries Llc
5930-01-051-2056044-0020 INTERCHANGEABLE
Diaphragm,pressure Switch
Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S
5999-01-249-247344020 INTERCHANGEABLE
Contact Kit,electrical
Biotek Instruments, Inc. Dba Biotek Div Bio-Tek Instruments Llc Dba Biotek Instruments Inc.
5905-01-268-049844020 INTERCHANGEABLE
Resistor,thermal
Ysi Inc
5985-01-353-583544020 INTERCHANGEABLE
Divider,power,radio Frequency
Anaren, Inc. Div Anaren Microwave Inc
6810-01-600-1545A12475 INTERCHANGEABLE
Tris(hydroxymethyl)aminomethane
Johnson Matthey Catalog Co
4730-01-617-4984 INTERCHANGEABLE
Nipple,pipe
Cross-Reference Index
Part NumberManufacturer
3-12475 Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc. (USA)
677-0014-00 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
A12475 Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc. (USA)
AT-2120 Hytronics Corp. (USA)
44020 Freed Transformer Co (USA)
Related Parts
5133-00-227-9662INTERCHANGEABLE
DRILL,TWIST
5815-00-482-8810INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
312475
5999-00-795-4780INTERCHANGEABLE
CONTACT,ELECTRICAL
44020
2925-00-891-9285INTERCHANGEABLE
IGNITION UNIT
10-378175-3
5930-01-051-2056INTERCHANGEABLE
DIAPHRAGM,PRESSURE SWITCH
044-0020
5999-01-249-2473INTERCHANGEABLE
CONTACT KIT,ELECTRICAL
44020
5905-01-268-0498INTERCHANGEABLE
RESISTOR,THERMAL
44020
5985-01-353-5835INTERCHANGEABLE
DIVIDER,POWER,RADIO FREQUENCY
44020
6810-01-600-1545INTERCHANGEABLE
TRIS(HYDROXYMETHYL)AMINOMETHANE
A12475
4730-01-617-4984INTERCHANGEABLE
NIPPLE,PIPE
6130-01-664-2758INTERCHANGEABLE
CHARGER,BATTERY
6130-01-707-5820INTERCHANGEABLE
CHARGER,BATTERY
44020

Frequently Asked Questions

What is NSN 5950-00-978-2552?

NSN 5950-00-978-2552 is a Transformer,power, manufactured by Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-978-2552?

NSN 5950-00-978-2552 has 5 cross-referenced part numbers: 3-12475 (Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc.), 677-0014-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), A12475 (Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc.), AT-2120 (Hytronics Corp.), 44020 (Freed Transformer Co).

What NSN replaces 5950-00-978-2552?

There are 12 known substitutes for 5950-00-978-2552: 5133-00-227-9662, 5815-00-482-8810, 5999-00-795-4780 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3-12475?

Key specifications for 3-12475: Reliability Indicator: NOT ESTABLISHED; Frequency Rating: 300.0 HERTZ MINIMUM AND 3.0 KILOHERTZ MAXIMUM SINGLE COMPONENT; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Winding Operating Voltage: 600.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY. 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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