PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G146-557-001Transformer,power

Bae Systems Information and Electronic Systems Integration Inc. · NSN 5950-00-103-5243 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-103-5243 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-103-5243. Primary manufacturer part number: G146-557-001.
Features
  • Transformer,power — FSC 5950
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Body Width: 0.725 INCHES MAXIMUM IN
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Operating Voltage: 25.40 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Reliability Indicator: NOT ESTABLISHED
  • Nominal Thread Size: 0.086 INCHES SINGLE GROUP IN
  • Distance Between Mounting Facility Centers: 0.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-103-5243, 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 Bae Systems Information and Electronic Systems Integration 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-103-5243
Primary Part NumberG146-557-001
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerBae Systems Information and Electronic Systems Integration Inc.
StatusACTIVE
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Body Width0.725 INCHES MAXIMUM IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage25.40 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Reliability IndicatorNOT ESTABLISHED
Nominal Thread Size0.086 INCHES SINGLE GROUP IN
Distance Between Mounting Facility Centers0.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypeFULLY INCLOSED
Winding Operating Current10.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Mounting Facility Quantity2 SINGLE GROUP
Terminal Type and Quantity5 SOLDER STUD
Body Height1.300 INCHES MAXIMUM IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Frequency Rating380.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM SINGLE COMPONENT
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Length0.865 INCHES MAXIMUM IN
Thread Quantity Per Inch56 SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5950-00-403-2611G5169-024 INTERCHANGEABLE
Transformer,power
Kearfott Corporation Div Guidance and Navigation Division
Cross-Reference Index
Part NumberManufacturer
G146-557-001 Bae Systems Information and Electronic Systems Integration I Dba Es Marine Systems (USA)
G5169-024 Singer Co the Kearfott Div (USA)
G146-557-001 Singer Co the Kearfott Div (USA)
G146-557-001 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. (USA)
G146-557-001 Kearfott Corporation Div Guidance and Navigation Division (USA)
Related Parts
5950-00-403-2611INTERCHANGEABLE
TRANSFORMER,POWER
G5169-024

Frequently Asked Questions

What is NSN 5950-00-103-5243?

NSN 5950-00-103-5243 is a Transformer,power, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-103-5243?

NSN 5950-00-103-5243 has 5 cross-referenced part numbers: G146-557-001 (Bae Systems Information and Electronic Systems Integration I Dba Es Marine Systems), G5169-024 (Singer Co the Kearfott Div), G146-557-001 (Singer Co the Kearfott Div), G146-557-001 (Bae Systems Information and Electronic Systems Integration Inc.), G146-557-001 (Kearfott Corporation Div Guidance and Navigation Division).

What NSN replaces 5950-00-103-5243?

There is 1 known substitute for 5950-00-103-5243: 5950-00-403-2611. Verify interchangeability with system specifications before substitution.

What are the specifications of G146-557-001?

Key specifications for G146-557-001: Mounting Method: THREADED STUD(S) SINGLE GROUP; Body Width: 0.725 INCHES MAXIMUM IN; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Winding Operating Voltage: 25.40 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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