PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12-8-25Transformer,power

Signal Transformer Co Inc · NSN 5950-00-191-5667 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-191-5667 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-191-5667. Primary manufacturer part number: 12-8-25.
Features
  • Transformer,power — FSC 5950
  • Terminal Type and Quantity: 8 TAB, SOLDER LUG
  • Frequency Rating: 50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 2.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Operating Current: 25.0 AMPERES AC NOMINAL SINGLE COMPONENT ALL SECONDARY
  • Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
  • Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 4.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-191-5667, 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 Signal Transformer Co Inc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-191-5667
Primary Part Number12-8-25
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerSignal Transformer Co Inc
StatusACTIVE
Terminal Type and Quantity8 TAB, SOLDER LUG
Frequency Rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width2.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Current25.0 AMPERES AC NOMINAL SINGLE COMPONENT ALL SECONDARY
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length4.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage6.40 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting Slot Width0.196 INCHES NOMINAL SINGLE GROUP IN
Inclosure TypeOPEN
Body Height4.375 INCHES NOMINAL IN
Mounting Hole Diameter0.156 INCHES NOMINAL SINGLE GROUP IN
Reliability IndicatorNOT ESTABLISHED
Mounting Facility Quantity4 SINGLE GROUP
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4820-00-036-1593N50675 INTERCHANGEABLE
Cage,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
2910-00-487-27420-12825 INTERCHANGEABLE
Carburetor,float
Zenith Fuel Systems Llc
5930-00-501-30202113AY2B INTERCHANGEABLE
Switch,toggle
Shiloh Industries Inc
4730-00-670-6016SAE J514-3 12-12 140339Q INTERCHANGEABLE
Elbow,pipe
Sae International Dba Sae International
6505-01-135-426512-825 INTERCHANGEABLE
Hemodialysis Solution,concentrat
Cobe Laboratories Inc
5120-01-367-3567 INTERCHANGEABLE
Screwdriver Attachment,socket Wr
Cross-Reference Index
Part NumberManufacturer
12-8-25 Signal Transformer Co Inc (USA)
Related Parts
4820-00-036-1593INTERCHANGEABLE
CAGE,VALVE
N50675
2910-00-487-2742INTERCHANGEABLE
CARBURETOR,FLOAT
0-12825
5930-00-501-3020INTERCHANGEABLE
SWITCH,TOGGLE
2113AY2B
4730-00-670-6016INTERCHANGEABLE
ELBOW,PIPE
SAE J514-3 12-12 140339Q
6505-01-135-4265INTERCHANGEABLE
HEMODIALYSIS SOLUTION,CONCENTRAT
12-825
5120-01-367-3567INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR

Frequently Asked Questions

What is NSN 5950-00-191-5667?

NSN 5950-00-191-5667 is a Transformer,power, manufactured by Signal Transformer Co Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-191-5667?

NSN 5950-00-191-5667 has 1 cross-referenced part number: 12-8-25 (Signal Transformer Co Inc).

What NSN replaces 5950-00-191-5667?

There are 6 known substitutes for 5950-00-191-5667: 4820-00-036-1593, 2910-00-487-2742, 5930-00-501-3020 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12-8-25?

Key specifications for 12-8-25: Overall Length: 5.250 INCHES NOMINAL IN; Terminal Type and Quantity: 8 TAB, SOLDER LUG; Frequency Rating: 50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT; Center to Center Distance Between Mounting Facilities Parallel to Width: 2.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 18 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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