PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G289958-1Transformer,audio Frequency

Lucent Technologies Inc Corporate Headquarters · NSN 5950-01-104-4443 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-104-4443 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-104-4443. Primary manufacturer part number: G289958-1.
Features
  • Transformer,audio Frequency — FSC 5950
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
  • Inclosure Type: HERMETICALLY SEALED
  • Mounting Hole Diameter: 0.144 INCHES NOMINAL SINGLE GROUP IN
  • Body Width: 1.625 INCHES MAXIMUM IN
  • Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
  • Terminal Type and Quantity: 7 TAB, SOLDER LUG
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-104-4443, 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 Lucent Technologies Inc Corporate Headquarters. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-01-104-4443
Primary Part NumberG289958-1
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerLucent Technologies Inc Corporate Headquarters
StatusCANCELLED
Center to Center Distance Between Mounting Facilities Parallel to Length1.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
Mounting Hole Diameter0.144 INCHES NOMINAL SINGLE GROUP IN
Body Width1.625 INCHES MAXIMUM IN
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Terminal Type and Quantity7 TAB, SOLDER LUG
Mounting Facility Quantity4 SINGLE GROUP
Test Data Document81349-MIL-T-27 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Specification/standard Data81349-MIL-T-27/197 GOVERNMENT SPECIFICATION
Body Length1.625 INCHES NOMINAL IN
Impedance Rating in Ohms125.0 NOMINAL SINGLE COMPONENT ALL SECONDARY
Maximum Transformer Power Rating1.0 WATTS SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Frequency Rating40.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Impedance Rating in Ohms500.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-278-03255120-00-278-0325 INTERCHANGEABLE
Screw Starter,hand
General Services Administration Federal Supply Service
5340-00-533-6946 INTERCHANGEABLE
Strap,retaining
5985-00-581-7756A-174-4 INTERCHANGEABLE
Support,waveguide
Burke Products Inc
5999-00-761-8703H25 INTERCHANGEABLE
Heater,thermal Release
Siemens Energy and Automation Inc Siemens Furnas Controls Div
5950-00-834-246443001099-000 INTERCHANGEABLE
Transformer,audio Frequency
Dne Technologies, Inc
4730-00-868-51928C3-4 INTERCHANGEABLE
Trap,steam
Itt Fluid Technology Corp Itt Mcdonnell and Miller
5977-00-880-1537H25 INTERCHANGEABLE
Holder,electrical Contact Brush
Arriflex Corp
5905-00-957-1998 INTERCHANGEABLE
Plate,mounting
4940-01-073-4853H25C-1N-6-N-E-P3 INTERCHANGEABLE
Leak Detector,refrigerant Gas
Bacharach, Inc.
5950-01-102-7706 INTERCHANGEABLE
Transformer,audio Frequency
Cross-Reference Index
Part NumberManufacturer
G289958-1 Lucent Technologies Inc Corporate Headquarters (USA)
MIL-T-27/197 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
H25 United Transformer Corp Sub of Opt Industries Inc (USA)
M27/197-06 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
H25 Magnetika Inc (USA)
8442270-1 Lockheed Martin Corporation Div Rms (USA)
12Z13000-9335 Naval Ordnance Standards (USA)
8442270-1 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
Related Parts
5120-00-278-0325INTERCHANGEABLE
SCREW STARTER,HAND
5120-00-278-0325
5340-00-533-6946INTERCHANGEABLE
STRAP,RETAINING
5985-00-581-7756INTERCHANGEABLE
SUPPORT,WAVEGUIDE
A-174-4
5999-00-761-8703INTERCHANGEABLE
HEATER,THERMAL RELEASE
H25
5950-00-834-2464INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
43001099-000
4730-00-868-5192INTERCHANGEABLE
TRAP,STEAM
8C3-4
5977-00-880-1537INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
H25
5905-00-957-1998INTERCHANGEABLE
PLATE,MOUNTING
4940-01-073-4853INTERCHANGEABLE
LEAK DETECTOR,REFRIGERANT GAS
H25C-1N-6-N-E-P3
5950-01-102-7706INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-104-4413INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-01-104-4415INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY

Frequently Asked Questions

What is NSN 5950-01-104-4443?

NSN 5950-01-104-4443 is a Transformer,audio Frequency, manufactured by Lucent Technologies Inc Corporate Headquarters, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-01-104-4443?

NSN 5950-01-104-4443 has 8 cross-referenced part numbers: G289958-1 (Lucent Technologies Inc Corporate Headquarters), MIL-T-27/197 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), H25 (United Transformer Corp Sub of Opt Industries Inc), M27/197-06 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), H25 (Magnetika Inc) and 3 more.

What NSN replaces 5950-01-104-4443?

There are 12 known substitutes for 5950-01-104-4443: 5120-00-278-0325, 5340-00-533-6946, 5985-00-581-7756 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of G289958-1?

Key specifications for G289958-1: Center to Center Distance Between Mounting Facilities Parallel to Length: 1.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT; Inclosure Type: HERMETICALLY SEALED; Mounting Hole Diameter: 0.144 INCHES NOMINAL SINGLE GROUP IN. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-01-104-4443 still in active supply?

NSN 5950-01-104-4443 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.
PartsTable Design LLC · partstable.com