PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27F103Transformer,power

Thordarson Inc · NSN 5950-00-042-6541 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-042-6541 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-042-6541. Primary manufacturer part number: 27F103.
Features
  • Transformer,power — FSC 5950
  • Winding Operating Voltage: 105.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 125.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Winding Operating Voltage: 12.60 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.190 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Reliability Indicator: NOT ESTABLISHED
  • Body Height: 2.380 INCHES NOMINAL IN
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY 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 5950-00-042-6541, 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 Thordarson Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN5950-00-042-6541
Primary Part Number27F103
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerThordarson Inc
StatusCANCELLED
Winding Operating Voltage105.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 125.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Operating Voltage12.60 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Length1.190 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Reliability IndicatorNOT ESTABLISHED
Body Height2.380 INCHES NOMINAL IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Center to Center Distance Between Mounting Facilities Parallel to Width1.190 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Body Length1.620 INCHES NOMINAL IN
Winding Operating Current800.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Terminal Type and Quantity9 TAB, SOLDER LUG
Frequency Rating380.0 HERTZ MINIMUM AND 1.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5120-00-133-1746910112105 INTERCHANGEABLE
Remover,electrical Contact
Virginia Panel Corporation Dba Virginia Panel Corp
6130-00-195-7347 INTERCHANGEABLE
Charger,battery
5133-00-596-7947 INTERCHANGEABLE
Drill,twist
5331-00-805-2966MS28778-4 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5340-01-109-123712494 INTERCHANGEABLE
Crossbar,slide Asse
L3 Technologies, Inc. Div L3 Keo
5307-01-144-887112494 INTERCHANGEABLE
Stud,plain
Westerbeke Corporation
4820-01-159-896440700-3 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Rogerson Aircraft Equipment Group
4520-01-433-7160 INTERCHANGEABLE
Heating Element,electrical,nonim
6515-01-576-8422305.36 INTERCHANGEABLE
Case,graphic,implant
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
27F103 Thordarson Inc (USA)
4FMS1208 Emerson Electric Co White-Rodgers Div (USA)
10124667 Us Army Aviation and Missile Command (USA)
A12494 Basler Electric Co (USA)
12494 Basler Electric Co (USA)
Related Parts
5120-00-133-1746INTERCHANGEABLE
REMOVER,ELECTRICAL CONTACT
910112105
6130-00-195-7347INTERCHANGEABLE
CHARGER,BATTERY
5133-00-596-7947INTERCHANGEABLE
DRILL,TWIST
5331-00-805-2966INTERCHANGEABLE
O-RING
MS28778-4
5340-01-109-1237INTERCHANGEABLE
CROSSBAR,SLIDE ASSE
12494
5307-01-144-8871INTERCHANGEABLE
STUD,PLAIN
12494
4820-01-159-8964INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40700-3
4520-01-433-7160INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
6515-01-576-8422INTERCHANGEABLE
CASE,GRAPHIC,IMPLANT
305.36

Frequently Asked Questions

What is NSN 5950-00-042-6541?

NSN 5950-00-042-6541 is a Transformer,power, manufactured by Thordarson Inc, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-042-6541?

NSN 5950-00-042-6541 has 5 cross-referenced part numbers: 27F103 (Thordarson Inc), 4FMS1208 (Emerson Electric Co White-Rodgers Div), 10124667 (Us Army Aviation and Missile Command), A12494 (Basler Electric Co), 12494 (Basler Electric Co).

What NSN replaces 5950-00-042-6541?

There are 9 known substitutes for 5950-00-042-6541: 5120-00-133-1746, 6130-00-195-7347, 5133-00-596-7947 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 27F103?

Key specifications for 27F103: Winding Operating Voltage: 105.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 125.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Winding Operating Voltage: 12.60 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY; Center to Center Distance Between Mounting Facilities Parallel to Length: 1.190 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Overall Height: 2.760 INCHES NOMINAL IN. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-042-6541 still in active supply?

NSN 5950-00-042-6541 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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