PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1203Transformer,audio Frequency

Dietz Design Inc · NSN 5950-00-647-6993 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-647-6993 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-647-6993. Primary manufacturer part number: 1203.
Features
  • Transformer,audio Frequency — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Primary to Secondary Turn Ratio: 1 TO 4-1/10 SINGLE COMPONENT
  • Frequency Rating: 300.0 HERTZ MINIMUM AND 3.5 KILOHERTZ MAXIMUM SINGLE COMPONENT
  • Mounting Facility Quantity: 4 SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-647-6993, 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 Dietz Design Inc. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-647-6993
Primary Part Number1203
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerDietz Design Inc
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Thread Quantity Per Inch32 SINGLE GROUP
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Primary to Secondary Turn Ratio1 TO 4-1/10 SINGLE COMPONENT
Frequency Rating300.0 HERTZ MINIMUM AND 3.5 KILOHERTZ MAXIMUM SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Body Length1.500 INCHES NOMINAL IN
Body Height2.125 INCHES NOMINAL IN
Impedance Rating in Ohms10000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.016 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Impedance Rating in Ohms600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Length1.016 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Maximum Transformer Power Rating17.0 DECIBELS SINGLE COMPONENT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Operating Current10.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Inclosure TypeHERMETICALLY SEALED
Terminal Type and Quantity4 STANDOFF, SOLDER LUG
Body Width1.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5305-00-071-2079B1821BH050C400N INTERCHANGEABLE
Screw,cap,hexagon Head
American National Standards Institute Incorporated Dba American National Standards Institute
3455-00-131-623712610 INTERCHANGEABLE
Cutter,milling,angle
Niagara Cutter Inc
5905-00-238-25487903 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Triplett (bluffton) Corporation Dba Lfe Instruments
5905-00-407-0082 INTERCHANGEABLE
Resistor,fixed,composition
2825-00-446-92397903 INTERCHANGEABLE
Spindle W Tappet
Northrop Grumman Systems Corporation Div Marine Systems
5360-00-527-14137903 INTERCHANGEABLE
Spring,helical,compression
Cooper Machinery Services Llc
3110-00-555-4114111727 INTERCHANGEABLE
Bearing,ball,annular
Ge Aviation Systems Llc
5975-01-014-9100J1096 INTERCHANGEABLE
Clamp,suspension
Joslyn Corp
5998-01-224-7505 INTERCHANGEABLE
Circuit Card Assembly
6210-01-617-77927903 INTERCHANGEABLE
Lens,light
Independent Rough Terrain Center Llc
Cross-Reference Index
Part NumberManufacturer
AU7977 Mte Corp Milwaukee Transformer Co (USA)
HB5098CHANGED Dowty Rfl Industries Inc (USA)
7903 Mkc Electronics Corp (USA)
AU7977 Magnespec Inc (USA)
1203 PRIMARY Dietz Design Inc (USA)
Related Parts
5305-00-071-2079INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
B1821BH050C400N
3455-00-131-6237INTERCHANGEABLE
CUTTER,MILLING,ANGLE
12610
5905-00-238-2548INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
7903
5905-00-407-0082INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
2825-00-446-9239INTERCHANGEABLE
SPINDLE W TAPPET
7903
5360-00-527-1413INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
7903
3110-00-555-4114INTERCHANGEABLE
BEARING,BALL,ANNULAR
111727
5975-01-014-9100INTERCHANGEABLE
CLAMP,SUSPENSION
J1096
5998-01-224-7505INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
6210-01-617-7792INTERCHANGEABLE
LENS,LIGHT
7903

Frequently Asked Questions

What is NSN 5950-00-647-6993?

NSN 5950-00-647-6993 is a Transformer,audio Frequency, manufactured by Dietz Design Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-647-6993?

NSN 5950-00-647-6993 has 5 cross-referenced part numbers: AU7977 (Mte Corp Milwaukee Transformer Co), HB5098CHANGED (Dowty Rfl Industries Inc), 7903 (Mkc Electronics Corp), AU7977 (Magnespec Inc), 1203 (Dietz Design Inc).

What NSN replaces 5950-00-647-6993?

There are 10 known substitutes for 5950-00-647-6993: 5305-00-071-2079, 3455-00-131-6237, 5905-00-238-2548 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1203?

Key specifications for 1203: Reliability Indicator: NOT ESTABLISHED; Thread Quantity Per Inch: 32 SINGLE GROUP; Mounting Method: THREADED STUD(S) SINGLE GROUP; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT. 20 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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