PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2278339-00Transformer,power

L3 Technologies, Inc. Dba Communication Systems-West Div Communication Systems-West · NSN 5950-01-020-7172 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-020-7172 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-020-7172. Primary manufacturer part number: 2278339-00.
Features
  • Transformer,power — FSC 5950
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Terminal Type and Quantity: 11 PIN
  • Winding Operating Voltage: 20.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
  • Winding Shielding Method: INTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
  • Winding Function and Quantity: 1 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
  • Winding Operating Current: 315.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
  • Winding Operating Current: 135.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-020-7172, 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 L3 Technologies, Inc. Dba Communication Systems-West Div Communication Systems-West. 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-020-7172
Primary Part Number2278339-00
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerL3 Technologies, Inc. Dba Communication Systems-West Div Communication Systems-West
StatusACTIVE
Mounting Facility Quantity4 SINGLE GROUP
Terminal Type and Quantity11 PIN
Winding Operating Voltage20.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Shielding MethodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
Winding Operating Current315.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Winding Operating Current135.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage20.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Operating Current1.0 AMPERES AC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY
Mounting Hole Diameter0.185 INCHES NOMINAL SINGLE GROUP IN
Body Height1.560 INCHES NOMINAL IN
Body Length1.950 INCHES NOMINAL IN
Winding Operating Voltage10.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Body Width1.570 INCHES NOMINAL IN
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeFULLY INCLOSED
Winding Operating Current100.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Winding Operating Voltage10.00 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5133-00-189-9283 INTERCHANGEABLE
Drill,twist
2805-00-331-642918803 INTERCHANGEABLE
Parts Kit,gasoline Engine
R.h. Industries, Inc.
2915-00-447-049732-0413 INTERCHANGEABLE
Parts Kit,pump,overhaul
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
3460-01-208-7488 INTERCHANGEABLE
Wheel,abrasive
4710-01-396-514418038 INTERCHANGEABLE
Tube Assembly,metal
Westerbeke Corporation
6515-01-586-74176872160 INTERCHANGEABLE
Trap,water,anesthesia Monitor
Draeger Inc
Cross-Reference Index
Part NumberManufacturer
EA1188T1 Magnetic Circuit Elements Inc Dba Magnetic Circuit Elements Inc (USA)
18038 Robert M. Hadley Company, Inc. (USA)
3-20076 Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc. (USA)
2278339-00 PRIMARY L3 Technologies, Inc. Dba Communication Systems-West Div Communication Systems-West (USA)
Related Parts
5133-00-189-9283INTERCHANGEABLE
DRILL,TWIST
2805-00-331-6429INTERCHANGEABLE
PARTS KIT,GASOLINE ENGINE
18803
2915-00-447-0497INTERCHANGEABLE
PARTS KIT,PUMP,OVERHAUL
32-0413
3460-01-208-7488INTERCHANGEABLE
WHEEL,ABRASIVE
4710-01-396-5144INTERCHANGEABLE
TUBE ASSEMBLY,METAL
18038
6515-01-586-7417INTERCHANGEABLE
TRAP,WATER,ANESTHESIA MONITOR
6872160

Frequently Asked Questions

What is NSN 5950-01-020-7172?

NSN 5950-01-020-7172 is a Transformer,power, manufactured by L3 Technologies, Inc. Dba Communication Systems-West Div Communication Systems-West, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-020-7172?

NSN 5950-01-020-7172 has 4 cross-referenced part numbers: EA1188T1 (Magnetic Circuit Elements Inc Dba Magnetic Circuit Elements Inc), 18038 (Robert M. Hadley Company, Inc.), 3-20076 (Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc.), 2278339-00 (L3 Technologies, Inc. Dba Communication Systems-West Div Communication Systems-West).

What NSN replaces 5950-01-020-7172?

There are 6 known substitutes for 5950-01-020-7172: 5133-00-189-9283, 2805-00-331-6429, 2915-00-447-0497 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2278339-00?

Key specifications for 2278339-00: Mounting Facility Quantity: 4 SINGLE GROUP; Terminal Type and Quantity: 11 PIN; Winding Operating Voltage: 20.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY; Winding Shielding Method: INTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT. 24 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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