PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

19973Transformer,audio Frequency

Freed Transformer Co · NSN 5950-00-231-4756 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-231-4756 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-231-4756. Primary manufacturer part number: 19973.
Features
  • Transformer,audio Frequency — FSC 5950
  • Body Height: 2.812 INCHES NOMINAL IN
  • Winding Operating Current: 36.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Body Width: 1.688 INCHES NOMINAL IN
  • Maximum Transformer Power Rating: 4.0 WATTS SINGLE COMPONENT
  • Body Length: 1.750 INCHES NOMINAL IN
  • Frequency Rating: 60.0 HERTZ MINIMUM AND 10.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-231-4756, 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 Freed Transformer Co. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-231-4756
Primary Part Number19973
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Body Height2.812 INCHES NOMINAL IN
Winding Operating Current36.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Body Width1.688 INCHES NOMINAL IN
Maximum Transformer Power Rating4.0 WATTS SINGLE COMPONENT
Body Length1.750 INCHES NOMINAL IN
Frequency Rating60.0 HERTZ MINIMUM AND 10.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Impedance Rating in Ohms2.0 NOMINAL AND 4.0 NOMINAL AND 8.0 NOMINAL AND 15.0 NOMINAL AND 500.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Inclosure TypeOPEN
Impedance Rating in Ohms10000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Distance Between Mounting Facility Centers2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Mounting Facility Quantity2 SINGLE GROUP
Primary to Secondary Turn Ratio1 TO 4-1/2 SINGLE COMPONENT
Mounting Hole Diameter0.250 INCHES NOMINAL SINGLE GROUP IN
Terminal Type and Quantity9 WIRE LEAD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
7510-00-275-72137213 INTERCHANGEABLE
Pencil
Safina Office Products, Inc. Dba Safina Office Products Inc
5110-00-555-84975110-00-555-8497 INTERCHANGEABLE
Punch and Die Set,knockout
General Services Administration Federal Supply Service
6625-01-092-8564 INTERCHANGEABLE
Range Assembly
6160-01-323-924019973 INTERCHANGEABLE
Retainer,battery
Giga-Tronics Incorporated Dba Giga-Tronics
3020-01-495-13291997-3 INTERCHANGEABLE
Shield,upper Front
Federal Equipment Co
Cross-Reference Index
Part NumberManufacturer
19973 PRIMARY Freed Transformer Co (USA)
Related Parts
7510-00-275-7213INTERCHANGEABLE
PENCIL
7213
5110-00-555-8497INTERCHANGEABLE
PUNCH AND DIE SET,KNOCKOUT
5110-00-555-8497
6625-01-092-8564INTERCHANGEABLE
RANGE ASSEMBLY
6160-01-323-9240INTERCHANGEABLE
RETAINER,BATTERY
19973
3020-01-495-1329INTERCHANGEABLE
SHIELD,UPPER FRONT
1997-3

Frequently Asked Questions

What is NSN 5950-00-231-4756?

NSN 5950-00-231-4756 is a Transformer,audio Frequency, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-231-4756?

NSN 5950-00-231-4756 has 1 cross-referenced part number: 19973 (Freed Transformer Co).

What NSN replaces 5950-00-231-4756?

There are 5 known substitutes for 5950-00-231-4756: 7510-00-275-7213, 5110-00-555-8497, 6625-01-092-8564 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 19973?

Key specifications for 19973: Body Height: 2.812 INCHES NOMINAL IN; Winding Operating Current: 36.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT; Body Width: 1.688 INCHES NOMINAL IN. 17 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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