PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12-1043Transformer,audio Frequency

Entron Industries Limited Partnership Dba Entron Industries Property Div · NSN 5950-00-648-2294 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-648-2294 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-648-2294. Primary manufacturer part number: 12-1043.
Features
  • Transformer,audio Frequency — FSC 5950
  • Terminal Type and Quantity: 5 STANDOFF, SOLDER LUG
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Operating Current: 4.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
  • Body Width: 2.125 INCHES NOMINAL IN
  • Impedance Rating in Ohms: 1750.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Maximum Transformer Power Rating: 5.0 WATTS SINGLE COMPONENT
  • Body Length: 2.250 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-648-2294, 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 Entron Industries Limited Partnership Dba Entron Industries Property Div. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-648-2294
Primary Part Number12-1043
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerEntron Industries Limited Partnership Dba Entron Industries Property Div
StatusACTIVE
Terminal Type and Quantity5 STANDOFF, SOLDER LUG
Reliability IndicatorNOT ESTABLISHED
Winding Operating Current4.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Body Width2.125 INCHES NOMINAL IN
Impedance Rating in Ohms1750.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Maximum Transformer Power Rating5.0 WATTS SINGLE COMPONENT
Body Length2.250 INCHES NOMINAL IN
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Mounting Facility Quantity4 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length1.624 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Quantity Per Inch32 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Impedance Rating in Ohms6000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Operating Current40.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Frequency Rating200.0 HERTZ MINIMUM AND 3.5 KILOHERTZ MAXIMUM SINGLE COMPONENT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Primary to Secondary Turn Ratio1 TO 1-45/64 SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
Body Height2.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5970-00-143-40643831-4 INTERCHANGEABLE
Insulator,washer
Conductix Inc Div Conductix Wampfler
5331-00-166-1017AS3209-023 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5330-00-358-9809376MAA1 INTERCHANGEABLE
Gasket
Linde Material Handling North America Corporation
3110-00-402-5887 INTERCHANGEABLE
Bearing,ball,annular
5950-00-988-3645 INTERCHANGEABLE
Coil,radio Frequency
5133-01-046-2893 INTERCHANGEABLE
Drill,twist
5330-01-096-4740383-14 INTERCHANGEABLE
Gasket
Q V S Inc
6515-01-371-5179 INTERCHANGEABLE
Needle,suture
5120-01-581-5798 INTERCHANGEABLE
Socket,socket Wrench
4010-01-587-7266 INTERCHANGEABLE
Rope,wire
Cross-Reference Index
Part NumberManufacturer
383-14 Wells Cti Incnics Inc (USA)
X517-1 Communication Coil, Inc. Div - (USA)
18345 Albert Frei & Sons Inc. Div Albert Frei & Sons Inc. (USA)
12-1043 PRIMARY Entron Industries Limited Partnership Dba Entron Industries Property Div (USA)
13751626 PRIMARY Entron Industries Limited Partnership Dba Entron Industries Property Div (USA)
18345 PRIMARY Freed Transformer Co (USA)
Related Parts
5970-00-143-4064INTERCHANGEABLE
INSULATOR,WASHER
3831-4
5331-00-166-1017INTERCHANGEABLE
O-RING
AS3209-023
5330-00-358-9809INTERCHANGEABLE
GASKET
376MAA1
3110-00-402-5887INTERCHANGEABLE
BEARING,BALL,ANNULAR
5950-00-988-3645INTERCHANGEABLE
COIL,RADIO FREQUENCY
5133-01-046-2893INTERCHANGEABLE
DRILL,TWIST
5330-01-096-4740INTERCHANGEABLE
GASKET
383-14
6515-01-371-5179INTERCHANGEABLE
NEEDLE,SUTURE
5120-01-581-5798INTERCHANGEABLE
SOCKET,SOCKET WRENCH
4010-01-587-7266INTERCHANGEABLE
ROPE,WIRE
5985-01-617-6723INTERCHANGEABLE
CASE,MAST

Frequently Asked Questions

What is NSN 5950-00-648-2294?

NSN 5950-00-648-2294 is a Transformer,audio Frequency, manufactured by Entron Industries Limited Partnership Dba Entron Industries Property Div, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-648-2294?

NSN 5950-00-648-2294 has 6 cross-referenced part numbers: 383-14 (Wells Cti Incnics Inc), X517-1 (Communication Coil, Inc. Div -), 18345 (Albert Frei & Sons Inc. Div Albert Frei & Sons Inc.), 12-1043 (Entron Industries Limited Partnership Dba Entron Industries Property Div), 13751626 (Entron Industries Limited Partnership Dba Entron Industries Property Div) and 1 more.

What NSN replaces 5950-00-648-2294?

There are 11 known substitutes for 5950-00-648-2294: 5970-00-143-4064, 5331-00-166-1017, 5330-00-358-9809 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12-1043?

Key specifications for 12-1043: Terminal Type and Quantity: 5 STANDOFF, SOLDER LUG; Reliability Indicator: NOT ESTABLISHED; Winding Operating Current: 4.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY; Body Width: 2.125 INCHES NOMINAL IN. 21 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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