PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28780Transformer,power

Freed Transformer Co · NSN 5950-00-683-3088 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-683-3088 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-683-3088. Primary manufacturer part number: 28780.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Body Height: 1.875 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 40 SINGLE GROUP
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Body Width: 1.312 INCHES NOMINAL IN
  • Distance Between Mounting Facility Centers: 0.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-683-3088, 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 Freed Transformer Co. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN5950-00-683-3088
Primary Part Number28780
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Body Height1.875 INCHES NOMINAL IN
Thread Quantity Per Inch40 SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Width1.312 INCHES NOMINAL IN
Distance Between Mounting Facility Centers0.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Operating Voltage10.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Mounting Facility Quantity2 SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Terminal Type and Quantity4 TAB, SOLDER LUG
Winding Operating Current600.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Nominal Thread Size0.112 INCHES SINGLE GROUP IN
Body Length1.312 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5930-00-549-4273C10996 INTERCHANGEABLE
Switch,rotary
Electro Switch Corp. Dba Electro Switch Corp
5930-00-592-149710-641 INTERCHANGEABLE
Parts Kit,switch
Patriot Sensors & Controls Corp Div Measurement & Calibration Technologies
2590-01-613-572128780 INTERCHANGEABLE
Support,retractable,trailer
Silver Eagle Manufacturing Co
Cross-Reference Index
Part NumberManufacturer
413663-1 Naval Air Warfare Center Aircraft Division Joint Base Jbmdl (USA)
28780 PRIMARY Freed Transformer Co (USA)
C10996 Electronic Transformer Corp Div Electronic Transformer Corporation (USA)
SK15500-50 Unisys Corp Defense Systems C S D Field Engineering (USA)
Related Parts
5930-00-549-4273INTERCHANGEABLE
SWITCH,ROTARY
C10996
5930-00-592-1497INTERCHANGEABLE
PARTS KIT,SWITCH
10-641
2590-01-613-5721INTERCHANGEABLE
SUPPORT,RETRACTABLE,TRAILER
28780

Frequently Asked Questions

What is NSN 5950-00-683-3088?

NSN 5950-00-683-3088 is a Transformer,power, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-683-3088?

NSN 5950-00-683-3088 has 4 cross-referenced part numbers: 413663-1 (Naval Air Warfare Center Aircraft Division Joint Base Jbmdl), 28780 (Freed Transformer Co), C10996 (Electronic Transformer Corp Div Electronic Transformer Corporation), SK15500-50 (Unisys Corp Defense Systems C S D Field Engineering).

What NSN replaces 5950-00-683-3088?

There are 3 known substitutes for 5950-00-683-3088: 5930-00-549-4273, 5930-00-592-1497, 2590-01-613-5721. Verify interchangeability with system specifications before substitution.

What are the specifications of 28780?

Key specifications for 28780: Reliability Indicator: NOT ESTABLISHED; Body Height: 1.875 INCHES NOMINAL IN; Thread Quantity Per Inch: 40 SINGLE GROUP; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP. 18 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com