PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

128C943H05Transformer,power

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 5950-00-434-3093 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-434-3093 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-434-3093. Primary manufacturer part number: 128C943H05.
Features
  • Transformer,power — FSC 5950
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Body Height: 3.120 INCHES MAXIMUM IN
  • Inclosure Type: FULLY INCLOSED
  • Reliability Indicator: NOT ESTABLISHED
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-434-3093, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5950-00-434-3093
Primary Part Number128C943H05
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusACTIVE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Height3.120 INCHES MAXIMUM IN
Inclosure TypeFULLY INCLOSED
Reliability IndicatorNOT ESTABLISHED
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Mounting Facility Quantity4 SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Terminal Type and Quantity4 WIRE HOOK
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Length2.310 INCHES MAXIMUM IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.435 INCHES MINIMUM AND 1.445 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Test Data Document97942-128C943 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Winding Operating Voltage90.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Current500.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Body Width2.060 INCHES MAXIMUM IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.675 INCHES MINIMUM AND 1.685 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
9540-00-145-8447 INTERCHANGEABLE
Angle,structural
6210-00-152-3871 INTERCHANGEABLE
Light,indicator
5330-00-162-379521122 INTERCHANGEABLE
Seal,kit
Eaton Corporation Div Eaton Fluid Power
5945-00-251-3158SCC34335 INTERCHANGEABLE
Relay,electromagnetic
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5355-00-376-5185C59470 INTERCHANGEABLE
Knob
Raytheon Company Dba Raytheon Co
3417-00-494-9573 INTERCHANGEABLE
Milling Machine,horizontal,plain
2915-00-508-6212211-22 INTERCHANGEABLE
Block,shipping,fuel
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
5360-00-513-1302A21122 INTERCHANGEABLE
Spring,end,valve,pr
Aerocontrolex Group, Inc. Dba Aero Fluid Products
5962-01-064-1314 INTERCHANGEABLE
Microcircuit,digital
5133-01-095-6655 INTERCHANGEABLE
Drill,twist
Cross-Reference Index
Part NumberManufacturer
128C943H05 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
21122 Torotel, Inc. Div Torotel Products, Inc. (USA)
Related Parts
9540-00-145-8447INTERCHANGEABLE
ANGLE,STRUCTURAL
6210-00-152-3871INTERCHANGEABLE
LIGHT,INDICATOR
5330-00-162-3795INTERCHANGEABLE
SEAL,KIT
21122
5945-00-251-3158INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
SCC34335
5355-00-376-5185INTERCHANGEABLE
KNOB
C59470
3417-00-494-9573INTERCHANGEABLE
MILLING MACHINE,HORIZONTAL,PLAIN
2915-00-508-6212INTERCHANGEABLE
BLOCK,SHIPPING,FUEL
211-22
5360-00-513-1302INTERCHANGEABLE
SPRING,END,VALVE,PR
A21122
5962-01-064-1314INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5133-01-095-6655INTERCHANGEABLE
DRILL,TWIST
4730-01-109-9651INTERCHANGEABLE
HOSE
4710-01-303-3877INTERCHANGEABLE
TUBING,NONMETALLIC
21122

Frequently Asked Questions

What is NSN 5950-00-434-3093?

NSN 5950-00-434-3093 is a Transformer,power, 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 5950-00-434-3093?

NSN 5950-00-434-3093 has 2 cross-referenced part numbers: 128C943H05 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 21122 (Torotel, Inc. Div Torotel Products, Inc.).

What NSN replaces 5950-00-434-3093?

There are 12 known substitutes for 5950-00-434-3093: 9540-00-145-8447, 6210-00-152-3871, 5330-00-162-3795 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 128C943H05?

Key specifications for 128C943H05: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Body Height: 3.120 INCHES MAXIMUM IN; Inclosure Type: FULLY INCLOSED; Reliability Indicator: NOT ESTABLISHED. 19 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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