PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42831Transformer,power

Coast/advanced Chip Magnetics, Inc. · NSN 5950-01-268-2951 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-268-2951 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-268-2951. Primary manufacturer part number: 42831.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Function and Quantity: 2 PRIMARY AND 9 SECONDARY SINGLE COMPONENT
  • Winding Operating Current: 3.8 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
  • Body Outside Diameter: 2.380 INCHES MAXIMUM IN
  • Winding Operating Current: 3.8 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
  • Mounting Method: THREADED HOLE(S) SINGLE GROUP
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-268-2951, 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 Coast/advanced Chip Magnetics, Inc.. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-268-2951
Primary Part Number42831
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerCoast/advanced Chip Magnetics, Inc.
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Winding Function and Quantity2 PRIMARY AND 9 SECONDARY SINGLE COMPONENT
Winding Operating Current3.8 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Body Outside Diameter2.380 INCHES MAXIMUM IN
Winding Operating Current3.8 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Operating Voltage6.90 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Inclosure TypeFULLY INCLOSED
Body Length1.400 INCHES MAXIMUM IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Winding Operating Voltage85.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
Terminal Type and Quantity23 PIN
Winding Operating Voltage6.90 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Winding Operating Voltage6.90 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Mounting Facility Quantity1 SINGLE GROUP
Winding Operating Current3.8 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Winding Operating Voltage6.90 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Frequency Rating50.0 KILOHERTZ NOMINAL SINGLE COMPONENT
Winding Operating Current3.8 AMPERES AC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2510-00-175-9838 INTERCHANGEABLE
Spring Assembly,leaf
5975-00-888-3969138287-01 INTERCHANGEABLE
Mounting Base,electrical Equipme
Ge Aviation Systems Llc
4820-01-389-0366N42831 INTERCHANGEABLE
Diaphragm,actuator Valve,special
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
42831 Coast/advanced Chip Magnetics, Inc. (USA)
2895057-1 Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc (USA)
2895057 Magnetika East Limited Partnership (USA)
2895057-1 Raytheon Company Dba Raytheon (USA)
2895057-1 Superior Magnetics (USA)
Related Parts
2510-00-175-9838INTERCHANGEABLE
SPRING ASSEMBLY,LEAF
5975-00-888-3969INTERCHANGEABLE
MOUNTING BASE,ELECTRICAL EQUIPME
138287-01
4820-01-389-0366INTERCHANGEABLE
DIAPHRAGM,ACTUATOR VALVE,SPECIAL
N42831

Frequently Asked Questions

What is NSN 5950-01-268-2951?

NSN 5950-01-268-2951 is a Transformer,power, manufactured by Coast/advanced Chip Magnetics, Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-268-2951?

NSN 5950-01-268-2951 has 5 cross-referenced part numbers: 42831 (Coast/advanced Chip Magnetics, Inc.), 2895057-1 (Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc), 2895057 (Magnetika East Limited Partnership), 2895057-1 (Raytheon Company Dba Raytheon), 2895057-1 (Superior Magnetics).

What NSN replaces 5950-01-268-2951?

There are 3 known substitutes for 5950-01-268-2951: 2510-00-175-9838, 5975-00-888-3969, 4820-01-389-0366. Verify interchangeability with system specifications before substitution.

What are the specifications of 42831?

Key specifications for 42831: Reliability Indicator: NOT ESTABLISHED; Winding Function and Quantity: 2 PRIMARY AND 9 SECONDARY SINGLE COMPONENT; Winding Operating Current: 3.8 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY; Body Outside Diameter: 2.380 INCHES MAXIMUM IN. 22 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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