PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31197Transformer,power

Freed Transformer Co · NSN 5950-00-581-8690 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-581-8690 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-581-8690. Primary manufacturer part number: 31197.
Features
  • Transformer,power — FSC 5950
  • Body Length: 1.562 INCHES NOMINAL IN
  • Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP
  • Body Width: 1.531 INCHES NOMINAL IN
  • Frequency Rating: 57.0 HERTZ MINIMUM AND 440.0 HERTZ MAXIMUM SINGLE COMPONENT
  • Winding Operating Voltage: 6.30 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Mounting Facility Quantity: 3 SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-581-8690, 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 16 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-581-8690
Primary Part Number31197
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Body Length1.562 INCHES NOMINAL IN
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Body Width1.531 INCHES NOMINAL IN
Frequency Rating57.0 HERTZ MINIMUM AND 440.0 HERTZ MAXIMUM SINGLE COMPONENT
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting Facility Quantity3 SINGLE GROUP
Terminal Type and Quantity6 TAB, SOLDER LUG
Body Height2.281 INCHES NOMINAL IN
Winding Operating Voltage40.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeHERMETICALLY SEALED
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Winding Operating Current600.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5360-00-377-2486N314441CPC18 INTERCHANGEABLE
Spring,helical,compression
Fairbanks Inc Fairbanks Scale Div
2920-01-258-34719G7641 INTERCHANGEABLE
Switch,lock,ignition
Caterpillar Inc Div Caterpillar Defense
1630-01-359-98783-1197 INTERCHANGEABLE
Wheel,landing Gear
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
7025-01-482-1345EXTERNAL ZIP 100MB USB INTERCHANGEABLE
Disk Drive Unit
Iomega Corporation
Cross-Reference Index
Part NumberManufacturer
31197 Freed Transformer Co (USA)
TR1624REVB Bae Systems Information and Electronic Systems Integration Inc. (USA)
Related Parts
5360-00-377-2486INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
N314441CPC18
2920-01-258-3471INTERCHANGEABLE
SWITCH,LOCK,IGNITION
9G7641
1630-01-359-9878INTERCHANGEABLE
WHEEL,LANDING GEAR
3-1197
7025-01-482-1345INTERCHANGEABLE
DISK DRIVE UNIT
EXTERNAL ZIP 100MB USB

Frequently Asked Questions

What is NSN 5950-00-581-8690?

NSN 5950-00-581-8690 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 5950-00-581-8690?

NSN 5950-00-581-8690 has 2 cross-referenced part numbers: 31197 (Freed Transformer Co), TR1624REVB (Bae Systems Information and Electronic Systems Integration Inc.).

What NSN replaces 5950-00-581-8690?

There are 4 known substitutes for 5950-00-581-8690: 5360-00-377-2486, 2920-01-258-3471, 1630-01-359-9878 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31197?

Key specifications for 31197: Body Length: 1.562 INCHES NOMINAL IN; Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP; Body Width: 1.531 INCHES NOMINAL IN; Frequency Rating: 57.0 HERTZ MINIMUM AND 440.0 HERTZ MAXIMUM SINGLE COMPONENT. 16 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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