PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

128C943H01Transformer,power

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 5950-00-488-2807 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-488-2807 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-488-2807. Primary manufacturer part number: 128C943H01.
Features
  • Transformer,power — FSC 5950
  • Mounting Facility Quantity: 2 SINGLE GROUP
  • Winding Operating Voltage: 28.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Frequency Rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT
  • Reliability Indicator: NOT ESTABLISHED
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Inclosure Type: FULLY INCLOSED
  • Terminal Type and Quantity: 4 TAB, SOLDER LUG
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-488-2807, 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-488-2807
Primary Part Number128C943H01
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusACTIVE
Mounting Facility Quantity2 SINGLE GROUP
Winding Operating Voltage28.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Terminal Type and Quantity4 TAB, SOLDER LUG
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Body Width1.280 INCHES MAXIMUM IN
Distance Between Mounting Facility Centers1.260 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Operating Voltage440.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Height1.720 INCHES MAXIMUM IN
Body Length1.280 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Operating Current200.0 MILLIAMPERES AC NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5360-00-235-070620759 INTERCHANGEABLE
Spring,helical,compression
Hydro-Aire Aerospace Corp
5815-00-356-3229 INTERCHANGEABLE
Clamp
5315-00-479-275420759P10 INTERCHANGEABLE
Key,machine
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
3030-00-528-4267 INTERCHANGEABLE
Belts,v,matched Set
5315-01-239-7020 INTERCHANGEABLE
Pin
6810-01-521-623820759 INTERCHANGEABLE
Spill,kit,mercury
Ghc Specialty Brands, Llc Dba Lab Safety Supply
Cross-Reference Index
Part NumberManufacturer
20759 Torotel, Inc. Div Torotel Products, Inc. (USA)
128C943H01 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
5360-00-235-0706INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
20759
5815-00-356-3229INTERCHANGEABLE
CLAMP
5315-00-479-2754INTERCHANGEABLE
KEY,MACHINE
20759P10
3030-00-528-4267INTERCHANGEABLE
BELTS,V,MATCHED SET
5315-01-239-7020INTERCHANGEABLE
PIN
6810-01-521-6238INTERCHANGEABLE
SPILL,KIT,MERCURY
20759

Frequently Asked Questions

What is NSN 5950-00-488-2807?

NSN 5950-00-488-2807 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 5950-00-488-2807?

NSN 5950-00-488-2807 has 2 cross-referenced part numbers: 20759 (Torotel, Inc. Div Torotel Products, Inc.), 128C943H01 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).

What NSN replaces 5950-00-488-2807?

There are 6 known substitutes for 5950-00-488-2807: 5360-00-235-0706, 5815-00-356-3229, 5315-00-479-2754 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 128C943H01?

Key specifications for 128C943H01: Mounting Facility Quantity: 2 SINGLE GROUP; Winding Operating Voltage: 28.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY; Frequency Rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT; Reliability Indicator: NOT ESTABLISHED. 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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