PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

61393Transformer,power

Instruments and Flight Research, Inc. · NSN 5950-00-931-1837 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-931-1837 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-931-1837. Primary manufacturer part number: 61393.
Features
  • Transformer,power — FSC 5950
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Reliability Indicator: NOT ESTABLISHED
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 3.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Operating Voltage: 850.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
  • Winding Function and Quantity: 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
  • Terminal Type and Quantity: 10 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 5950-00-931-1837, 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 Instruments and Flight Research, Inc.. Government technical data includes 25 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-931-1837
Primary Part Number61393
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerInstruments and Flight Research, Inc.
StatusACTIVE
Mounting Facility Quantity4 SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length3.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage850.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Terminal Type and Quantity10 TAB, SOLDER LUG
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Body Width4.500 INCHES NOMINAL IN
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
Winding Operating Current6.0 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage5.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Body Length5.500 INCHES NOMINAL IN
Test Data Document61393-94197 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)
Thread Quantity Per Inch20 SINGLE GROUP
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Operating Current600.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Nominal Thread Size0.250 INCHES SINGLE GROUP IN
Winding Operating Current6.0 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Inclosure TypeHERMETICALLY SEALED
Winding Operating Voltage110.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Center to Center Distance Between Mounting Facilities Parallel to Width3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Frequency Rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
Body Height6.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3040-01-115-960261393 INTERCHANGEABLE
Shaft,shouldered
Parker Hannifin Corporation Div Hydraulic Systems Division
5330-01-279-884461393 INTERCHANGEABLE
Packing,preformed
Hyster-Yale Group, Inc.
Cross-Reference Index
Part NumberManufacturer
61393 Instruments and Flight Research, Inc. (USA)
RT183 Cardwell Condester Corp Burmac Electronics Co Div (USA)
Related Parts
3040-01-115-9602INTERCHANGEABLE
SHAFT,SHOULDERED
61393
5330-01-279-8844INTERCHANGEABLE
PACKING,PREFORMED
61393

Frequently Asked Questions

What is NSN 5950-00-931-1837?

NSN 5950-00-931-1837 is a Transformer,power, manufactured by Instruments and Flight Research, Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-931-1837?

NSN 5950-00-931-1837 has 2 cross-referenced part numbers: 61393 (Instruments and Flight Research, Inc.), RT183 (Cardwell Condester Corp Burmac Electronics Co Div).

What NSN replaces 5950-00-931-1837?

There are 2 known substitutes for 5950-00-931-1837: 3040-01-115-9602, 5330-01-279-8844. Verify interchangeability with system specifications before substitution.

What are the specifications of 61393?

Key specifications for 61393: Mounting Facility Quantity: 4 SINGLE GROUP; Reliability Indicator: NOT ESTABLISHED; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Center to Center Distance Between Mounting Facilities Parallel to Length: 3.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 25 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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