PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

19901Transformer,power

Opt Industries Inc Div of Electronika Inc · NSN 5950-00-647-5060 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-647-5060 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-647-5060. Primary manufacturer part number: 19901.
Features
  • Transformer,power — FSC 5950
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Function and Quantity: 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
  • Terminal Type and Quantity: 18 TAB, SOLDER LUG
  • Body Width: 4.312 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 20 SINGLE GROUP
  • Winding Operating Voltage: 98.00 AC VOLTS NOMINAL AND 158.00 AC VOLTS NOMINAL AND 728.00 AC VOLTS NOMINAL AND 788.00 AC VOLTS NOMINAL AND 886.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-647-5060, 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 Opt Industries Inc Div of Electronika Inc. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-647-5060
Primary Part Number19901
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerOpt Industries Inc Div of Electronika Inc
StatusCANCELLED
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Terminal Type and Quantity18 TAB, SOLDER LUG
Body Width4.312 INCHES NOMINAL IN
Thread Quantity Per Inch20 SINGLE GROUP
Winding Operating Voltage98.00 AC VOLTS NOMINAL AND 158.00 AC VOLTS NOMINAL AND 728.00 AC VOLTS NOMINAL AND 788.00 AC VOLTS NOMINAL AND 886.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Body Height6.812 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width3.313 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length4.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Frequency Rating54.0 HERTZ MINIMUM AND 66.0 HERTZ MAXIMUM SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Voltage115.00 AC VOLTS NOMINAL AND 120.00 AC VOLTS NOMINAL AND 126.00 AC VOLTS NOMINAL AND 132.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Operating Voltage5.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Winding Operating Voltage5.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Inclosure TypeHERMETICALLY SEALED
Nominal Thread Size0.250 INCHES SINGLE GROUP IN
Body Length5.062 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5940-00-082-4897 INTERCHANGEABLE
Terminal,feedthru
5331-00-579-8108124A745 INTERCHANGEABLE
O-Ring
Meggitt Troy Inc
4820-01-323-512697010-01B INTERCHANGEABLE
Stem,fluid Valve
Griswold Industries Dba Cla-Val Co
9535-01-691-9177199-01 INTERCHANGEABLE
Strip,metal
Thermal Engineering International (usa) Inc.
Cross-Reference Index
Part NumberManufacturer
19901 Opt Industries Inc Div of Electronika Inc (USA)
B7485540 General Electric Co Specialty Transformer Dept (USA)
7485540P1 General Electric Co Specialty Transformer Dept (USA)
19901 Magnetika Inc Div Magnetika/phillipsburg Location (USA)
Related Parts
5940-00-082-4897INTERCHANGEABLE
TERMINAL,FEEDTHRU
5331-00-579-8108INTERCHANGEABLE
O-RING
124A745
4820-01-323-5126INTERCHANGEABLE
STEM,FLUID VALVE
97010-01B
9535-01-691-9177INTERCHANGEABLE
STRIP,METAL
199-01

Frequently Asked Questions

What is NSN 5950-00-647-5060?

NSN 5950-00-647-5060 is a Transformer,power, manufactured by Opt Industries Inc Div of Electronika Inc, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-647-5060?

NSN 5950-00-647-5060 has 4 cross-referenced part numbers: 19901 (Opt Industries Inc Div of Electronika Inc), B7485540 (General Electric Co Specialty Transformer Dept), 7485540P1 (General Electric Co Specialty Transformer Dept), 19901 (Magnetika Inc Div Magnetika/phillipsburg Location).

What NSN replaces 5950-00-647-5060?

There are 4 known substitutes for 5950-00-647-5060: 5940-00-082-4897, 5331-00-579-8108, 4820-01-323-5126 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 19901?

Key specifications for 19901: Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Reliability Indicator: NOT ESTABLISHED; Winding Function and Quantity: 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT; Terminal Type and Quantity: 18 TAB, SOLDER LUG. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-647-5060 still in active supply?

NSN 5950-00-647-5060 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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