PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

35131Transformer,power

Freed Transformer Co · NSN 5950-00-197-1974 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-197-1974 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-197-1974. Primary manufacturer part number: 35131.
Features
  • Transformer,power — FSC 5950
  • Nominal Thread Size: 0.250 INCHES SINGLE GROUP IN
  • Body Width: 4.250 INCHES MAXIMUM IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
  • Reliability Indicator: NOT ESTABLISHED
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Shielding Method: INTERNAL SHIELD GROUNDED TO INCLOSURE 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 5950-00-197-1974, 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 24 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-197-1974
Primary Part Number35131
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Nominal Thread Size0.250 INCHES SINGLE GROUP IN
Body Width4.250 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Center to Center Distance Between Mounting Facilities Parallel to Width3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
Winding Operating Voltage800.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Body Length4.375 INCHES MAXIMUM IN
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Center to Center Distance Between Mounting Facilities Parallel to Length3.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity10 TAB, SOLDER LUG
Winding Operating Current3.0 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Current210.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Winding Operating Voltage5.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Thread Quantity Per Inch20 SINGLE GROUP
Winding Operating Current7.0 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Mounting Facility Quantity4 SINGLE GROUP
Body Height5.375 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2915-01-030-935135330 INTERCHANGEABLE
Variable Orifice-Bleed Valve Con
Williams International Co., L.l.c.
3040-01-035-4118SR11081A INTERCHANGEABLE
Connecting Link,rigid
Sps Technologies Llc Dba Shur-Lok Company Div Aerospace Engineered Products Division
4820-01-201-5179 INTERCHANGEABLE
Valve
5930-01-311-77135050595-00 INTERCHANGEABLE
Switch
Hyster-Yale Group, Inc. Dba Yale Materials Handling
Cross-Reference Index
Part NumberManufacturer
C103317 Alcar Industries
35131 PRIMARY Freed Transformer Co (USA)
T05-0012-01 Service Supply Co (USA)
304818 PRIMARY Naval Ship Systems Command (USA)
Related Parts
2915-01-030-9351INTERCHANGEABLE
VARIABLE ORIFICE-BLEED VALVE CON
35330
3040-01-035-4118INTERCHANGEABLE
CONNECTING LINK,RIGID
SR11081A
4820-01-201-5179INTERCHANGEABLE
VALVE
5930-01-311-7713INTERCHANGEABLE
SWITCH
5050595-00

Frequently Asked Questions

What is NSN 5950-00-197-1974?

NSN 5950-00-197-1974 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 5950-00-197-1974?

NSN 5950-00-197-1974 has 4 cross-referenced part numbers: C103317 (Alcar Industries), 35131 (Freed Transformer Co), T05-0012-01 (Service Supply Co), 304818 (Naval Ship Systems Command).

What NSN replaces 5950-00-197-1974?

There are 4 known substitutes for 5950-00-197-1974: 2915-01-030-9351, 3040-01-035-4118, 4820-01-201-5179 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 35131?

Key specifications for 35131: Nominal Thread Size: 0.250 INCHES SINGLE GROUP IN; Body Width: 4.250 INCHES MAXIMUM IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Winding Function and Quantity: 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT. 27 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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