PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6187-15Transformer,power

Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect · NSN 5950-00-344-8313 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-344-8313 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-344-8313. Primary manufacturer part number: 6187-15.
Features
  • Transformer,power — FSC 5950
  • Mounting Method: BRACKET(S) SINGLE GROUP
  • Mounting Facility Quantity: 3 SINGLE GROUP
  • Body Width: 6.375 INCHES NOMINAL IN
  • Terminal Type and Quantity: 4 WIRE LEAD
  • Winding Operating Current: 12.5 AMPERES AC NOMINAL SINGLE COMPONENT ALL SECONDARY
  • Body Height: 11.750 INCHES NOMINAL IN
  • Cooling Method: SELF-COOLED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-344-8313, 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 Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-344-8313
Primary Part Number6187-15
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerCooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
StatusCANCELLED
Mounting MethodBRACKET(S) SINGLE GROUP
Mounting Facility Quantity3 SINGLE GROUP
Body Width6.375 INCHES NOMINAL IN
Terminal Type and Quantity4 WIRE LEAD
Winding Operating Current12.5 AMPERES AC NOMINAL SINGLE COMPONENT ALL SECONDARY
Body Height11.750 INCHES NOMINAL IN
Cooling MethodSELF-COOLED
Winding Operating Voltage240.00 AC VOLTS NOMINAL OR 480.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Length5.344 INCHES NOMINAL IN
Winding Operating Voltage120.00 AC VOLTS NOMINAL OR 240.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Maximum Transformer Power Rating1.5 KILOVOLT-AMPERE SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Frequency Rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting Hole Diameter0.219 INCHES NOMINAL SINGLE GROUP IN
Installation for Which DesignedINDOOR NONPORTABLE OR OUTDOOR NONPORTABLE
Inclosure TypeFULLY INCLOSED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5310-00-022-00811B4331 INTERCHANGEABLE
Nut,plain,hexagon
Caterpillar Inc Div Caterpillar Defense
5306-00-286-8236211081 INTERCHANGEABLE
Bolt,machine
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
6615-00-410-365292988 INTERCHANGEABLE
Link,summing
Parker-Hannifin Corporation Dba Control Systems Division
3110-00-739-529422008-1 INTERCHANGEABLE
Bearing
Safe Flight Instrument, Llc
5310-00-932-1176 INTERCHANGEABLE
Nut,special
5950-00-942-6619 INTERCHANGEABLE
Transformer,power
5355-01-122-476422008-1 INTERCHANGEABLE
Knob
Breeze-Eastern Llc
5340-01-196-6690 INTERCHANGEABLE
Disk,solid,plain
5310-01-450-6820220081 INTERCHANGEABLE
Nut,plain,hexagon
Rolls-Royce Solutions America Inc
Cross-Reference Index
Part NumberManufacturer
1.5S1B Square D Co Sorgel Mfg Plant (USA)
B4CX Gas Equipment Engineering Corporation, the Dba Geeco (USA)
A37658 Square D Co Sorgel Mfg Plant (USA)
S20N11S16N Westinghouse Electric Corp Power Generation-Generator Div (USA)
HS1F1.5AS Hevi Duty Electric Sola Basic Industries Inc Div a Unit of General Signal Corp (USA)
6187-15 PRIMARY Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect (USA)
HS1F1.5A Hevi Duty Electric Sola Basic Industries Inc Div a Unit of General Signal Corp (USA)
9T51Y6435 General Electric Co Motor Business Group (USA)
K210T204 National Weather Service Dba National Weather Service Ohd1 Div Office of Operational Systems (USA)
9T51Y11 General Electric Co Specialty Transformer Dept (USA)
220-081 Sherjor Inc (USA)
6E204 Westinghouse Electric Corp Power Generation-Generator Div (USA)
9T51Y11 General Electric Co Outdoor Breaker Business Section (USA)
92988 Square D Co Sorgel Mfg Plant (USA)
9T51Y6435 General Electric Co Specialty Transformer Dept (USA)
211-081 Sherjor Inc (USA)
6187-15 Air Dry Co of America, Llc (USA)
Related Parts
5310-00-022-0081INTERCHANGEABLE
NUT,PLAIN,HEXAGON
1B4331
5306-00-286-8236INTERCHANGEABLE
BOLT,MACHINE
211081
6615-00-410-3652INTERCHANGEABLE
LINK,SUMMING
92988
3110-00-739-5294INTERCHANGEABLE
BEARING
22008-1
5310-00-932-1176INTERCHANGEABLE
NUT,SPECIAL
5950-00-942-6619INTERCHANGEABLE
TRANSFORMER,POWER
5355-01-122-4764INTERCHANGEABLE
KNOB
22008-1
5340-01-196-6690INTERCHANGEABLE
DISK,SOLID,PLAIN
5310-01-450-6820INTERCHANGEABLE
NUT,PLAIN,HEXAGON
220081

Frequently Asked Questions

What is NSN 5950-00-344-8313?

NSN 5950-00-344-8313 is a Transformer,power, manufactured by Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-344-8313?

NSN 5950-00-344-8313 has 17 cross-referenced part numbers: 1.5S1B (Square D Co Sorgel Mfg Plant), B4CX (Gas Equipment Engineering Corporation, the Dba Geeco), A37658 (Square D Co Sorgel Mfg Plant), S20N11S16N (Westinghouse Electric Corp Power Generation-Generator Div), HS1F1.5AS (Hevi Duty Electric Sola Basic Industries Inc Div a Unit of General Signal Corp) and 12 more.

What NSN replaces 5950-00-344-8313?

There are 9 known substitutes for 5950-00-344-8313: 5310-00-022-0081, 5306-00-286-8236, 6615-00-410-3652 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6187-15?

Key specifications for 6187-15: Mounting Method: BRACKET(S) SINGLE GROUP; Mounting Facility Quantity: 3 SINGLE GROUP; Body Width: 6.375 INCHES NOMINAL IN; Terminal Type and Quantity: 4 WIRE LEAD. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-344-8313 still in active supply?

NSN 5950-00-344-8313 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.
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