PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

331C238H01Transformer,power Autotransforme

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 5950-00-583-1457 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-583-1457 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-583-1457. Primary manufacturer part number: 331C238H01.
Features
  • Transformer,power Autotransforme — FSC 5950
  • Winding Operating Voltage: 0.00 AC VOLTS MINIMUM AND 50.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT
  • Winding Operating Voltage: 110.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Mounting Bolt Circle Diameter: 1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Body Outside Diameter: 3.688 INCHES NOMINAL IN
  • Body Length: 4.750 INCHES NOMINAL IN
  • Reliability Indicator: NOT ESTABLISHED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power Autotransforme, cataloged under National Stock Number 5950-00-583-1457, 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 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-583-1457
Primary Part Number331C238H01
Item NameTransformer,power Autotransforme
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusACTIVE
Winding Operating Voltage0.00 AC VOLTS MINIMUM AND 50.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Winding Operating Voltage110.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting Bolt Circle Diameter1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Outside Diameter3.688 INCHES NOMINAL IN
Body Length4.750 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Winding Power Rating400.0 VOLTS-AMPERES SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Mounting Facility Quantity3 SINGLE GROUP
Winding Operating Current1.5 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Inclosure TypePARTIALLY INCLOSED, HALF SHELL
Terminal Type and Quantity3 THREADED STUD
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Winding Function and Quantity1 PRIMARY, VARIABLE AUTOTRANSFORMER TYPE SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4730-00-174-685972-54 INTERCHANGEABLE
Reducer,pipe
Itw Industrial Finishing Dba Binks Devilbiss
5136-00-197-95677254 INTERCHANGEABLE
Die,rethreading
Stanley Tools Div of Stanley Works
5330-00-350-002094-175-990 INTERCHANGEABLE
Seal,plain
Clinton Engines Corp
5940-00-672-0344332-14-04-022 INTERCHANGEABLE
Terminal Board
Cinch Connectivity Solutions Inc.
2930-00-714-5210157E48-2260 INTERCHANGEABLE
Thermostat,shutter
Kurz & Root Generator Company, Llc
5940-01-051-6939A602 INTERCHANGEABLE
Terminal,quick Disconnect
Electro-Term, Inc. Dba Electro Term Inc
5985-01-178-0064585R930H02 INTERCHANGEABLE
Waveguide
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
1680-01-186-98937254 INTERCHANGEABLE
Hybrid,automatic Ga
Honeywell International Inc. Dba Honeywell Div Aerospace -Olathe Hums Div
5962-01-254-6639 INTERCHANGEABLE
Microcircuit,digital
2040-01-614-25877254 INTERCHANGEABLE
Cleat,rope
Schoellhorn - Albrecht Machine Co Inc
Cross-Reference Index
Part NumberManufacturer
151A156 American Telephone and Telegraph Co (USA)
151A156 Westinghouse Electric Corp (USA)
331C238H01 Westinghouse Electric Corp (USA)
7254 Staco Energy Products Co Dba Staco Energy Products Co (USA)
151A156 Lucent Technologies Inc Dba Federal Marketing Group (USA)
C9784 Staco Energy Products Co Dba Staco Energy Products Co (USA)
151A156 Lucent Technologies Inc Corporate Headquarters (USA)
331C238H01 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
151A156 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
151A156 At and T Corp (USA)
Related Parts
4730-00-174-6859INTERCHANGEABLE
REDUCER,PIPE
72-54
5136-00-197-9567INTERCHANGEABLE
DIE,RETHREADING
7254
5330-00-350-0020INTERCHANGEABLE
SEAL,PLAIN
94-175-990
5940-00-672-0344INTERCHANGEABLE
TERMINAL BOARD
332-14-04-022
2930-00-714-5210INTERCHANGEABLE
THERMOSTAT,SHUTTER
157E48-2260
5940-01-051-6939INTERCHANGEABLE
TERMINAL,QUICK DISCONNECT
A602
5985-01-178-0064INTERCHANGEABLE
WAVEGUIDE
585R930H02
1680-01-186-9893INTERCHANGEABLE
HYBRID,AUTOMATIC GA
7254
5962-01-254-6639INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
2040-01-614-2587INTERCHANGEABLE
CLEAT,ROPE
7254
5925-01-719-5990INTERCHANGEABLE
CIRCUIT BREAKER
7254

Frequently Asked Questions

What is NSN 5950-00-583-1457?

NSN 5950-00-583-1457 is a Transformer,power Autotransforme, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-583-1457?

NSN 5950-00-583-1457 has 10 cross-referenced part numbers: 151A156 (American Telephone and Telegraph Co), 151A156 (Westinghouse Electric Corp), 331C238H01 (Westinghouse Electric Corp), 7254 (Staco Energy Products Co Dba Staco Energy Products Co), 151A156 (Lucent Technologies Inc Dba Federal Marketing Group) and 5 more.

What NSN replaces 5950-00-583-1457?

There are 11 known substitutes for 5950-00-583-1457: 4730-00-174-6859, 5136-00-197-9567, 5330-00-350-0020 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 331C238H01?

Key specifications for 331C238H01: Winding Operating Voltage: 0.00 AC VOLTS MINIMUM AND 50.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT; Winding Operating Voltage: 110.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Mounting Bolt Circle Diameter: 1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 17 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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