PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

949947-1Transformer,power

L3 Technologies, Inc. Div Communication Systems-East · NSN 5950-00-553-5120 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-553-5120 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-553-5120. Primary manufacturer part number: 949947-1.
Features
  • Transformer,power — FSC 5950
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Operating Current: 5.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
  • Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN
  • Winding Operating Voltage: 117.60 AC VOLTS NOMINAL AND 120.00 AC VOLTS NOMINAL AND 122.40 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Body Length: 2.750 INCHES NOMINAL IN
  • Winding Shielding Method: INTERNAL SHIELD GROUNDED TO INCLOSURE 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 5950-00-553-5120, 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. Div Communication Systems-East. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-553-5120
Primary Part Number949947-1
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerL3 Technologies, Inc. Div Communication Systems-East
StatusACTIVE
Center to Center Distance Between Mounting Facilities Parallel to Length2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Current5.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Winding Operating Voltage117.60 AC VOLTS NOMINAL AND 120.00 AC VOLTS NOMINAL AND 122.40 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Length2.750 INCHES NOMINAL IN
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Body Height2.812 INCHES NOMINAL IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Mounting Facility Quantity4 SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity7 STANDOFF, SOLDER LUG
Thread Quantity Per Inch32 SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Body Width2.375 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5133-00-189-9299 INTERCHANGEABLE
Drill,twist
4510-00-203-10214-41-24 INTERCHANGEABLE
Sink,scullery
Advance Food Service Equipment, Inc
5331-01-130-6121 INTERCHANGEABLE
O-Ring
5305-01-155-6667 INTERCHANGEABLE
Screw
5962-01-364-378944-124 INTERCHANGEABLE
Microcircuit,memory
Celtech Corporation
5120-01-615-0252S7610 INTERCHANGEABLE
Key,socket Head Screw
Para-Gear Equipment Co
4730-01-713-380744124 INTERCHANGEABLE
Manifold,fuel Feeder
Cat Pumps Corp
Cross-Reference Index
Part NumberManufacturer
44124 Coast/advanced Chip Magnetics, Inc. (USA)
S7610 Magnetika Inc (USA)
949947-1 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
8180005-501 Lockheed Martin Services, Llc (USA)
PEI 8102 Precision Electronics, Inc (USA)
949947-1 Glen Magnetics Inc (USA)
949947-1 PRIMARY L3 Technologies, Inc. Div Communication Systems-East (USA)
L15815 Electronic Transformer Corp Div Electronic Transformer Corporation (USA)
HY-3225 Hytronics Corp. (USA)
S7610 United Transformer Corp Sub of Opt Industries Inc (USA)
Related Parts
5133-00-189-9299INTERCHANGEABLE
DRILL,TWIST
4510-00-203-1021INTERCHANGEABLE
SINK,SCULLERY
4-41-24
5331-01-130-6121INTERCHANGEABLE
O-RING
5305-01-155-6667INTERCHANGEABLE
SCREW
5962-01-364-3789INTERCHANGEABLE
MICROCIRCUIT,MEMORY
44-124
5120-01-615-0252INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
S7610
4730-01-713-3807INTERCHANGEABLE
MANIFOLD,FUEL FEEDER
44124

Frequently Asked Questions

What is NSN 5950-00-553-5120?

NSN 5950-00-553-5120 is a Transformer,power, manufactured by L3 Technologies, Inc. Div Communication Systems-East, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-553-5120?

NSN 5950-00-553-5120 has 10 cross-referenced part numbers: 44124 (Coast/advanced Chip Magnetics, Inc.), S7610 (Magnetika Inc), 949947-1 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), 8180005-501 (Lockheed Martin Services, Llc), PEI 8102 (Precision Electronics, Inc) and 5 more.

What NSN replaces 5950-00-553-5120?

There are 7 known substitutes for 5950-00-553-5120: 5133-00-189-9299, 4510-00-203-1021, 5331-01-130-6121 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 949947-1?

Key specifications for 949947-1: Center to Center Distance Between Mounting Facilities Parallel to Length: 2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Center to Center Distance Between Mounting Facilities Parallel to Width: 1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Winding Operating Current: 5.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY; Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN. 20 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com