PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20949Transformer,audio Frequency

Freed Transformer Co · NSN 5950-00-227-7769 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-227-7769 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-227-7769. Primary manufacturer part number: 20949.
Features
  • Transformer,audio Frequency — FSC 5950
  • Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
  • Reliability Indicator: NOT ESTABLISHED
  • Terminal Type and Quantity: 4 STANDOFF, SOLDER LUG
  • Frequency Rating: 20.0 HERTZ MINIMUM AND 200.0 HERTZ MAXIMUM SINGLE COMPONENT
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Inclosure Type: HERMETICALLY SEALED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-227-7769, 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 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-227-7769
Primary Part Number20949
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusCANCELLED
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity4 STANDOFF, SOLDER LUG
Frequency Rating20.0 HERTZ MINIMUM AND 200.0 HERTZ MAXIMUM SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
Transformer FunctionINPUT
Body Width1.500 INCHES NOMINAL IN
Winding Operating Current150.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Body Height3.000 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Length1.500 INCHES NOMINAL IN
Impedance Rating in Ohms100000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Primary to Secondary Turn Ratio1 TO 100 SINGLE COMPONENT
Impedance Rating in Ohms10.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting Facility Quantity4 SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
2530-00-529-42107409325 INTERCHANGEABLE
Parts Kit,hydraulic Brake Wheel
U S Army Tank Automotive Command Amsta-Im-Mm
4720-01-056-817720949 INTERCHANGEABLE
Hose,preformed
Gates Corporation
5975-01-371-153120949 INTERCHANGEABLE
Conduit,nonmetallic,flexible
Hamilton Sundstrand Corporation
Cross-Reference Index
Part NumberManufacturer
B7759REVE Lewyt Corp
B7759 Lewyt Corp
20949 PRIMARY Freed Transformer Co (USA)
Related Parts
2530-00-529-4210INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE WHEEL
7409325
4720-01-056-8177INTERCHANGEABLE
HOSE,PREFORMED
20949
5975-01-371-1531INTERCHANGEABLE
CONDUIT,NONMETALLIC,FLEXIBLE
20949

Frequently Asked Questions

What is NSN 5950-00-227-7769?

NSN 5950-00-227-7769 is a Transformer,audio Frequency, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-227-7769?

NSN 5950-00-227-7769 has 3 cross-referenced part numbers: B7759REVE (Lewyt Corp), B7759 (Lewyt Corp), 20949 (Freed Transformer Co).

What NSN replaces 5950-00-227-7769?

There are 3 known substitutes for 5950-00-227-7769: 2530-00-529-4210, 4720-01-056-8177, 5975-01-371-1531. Verify interchangeability with system specifications before substitution.

What are the specifications of 20949?

Key specifications for 20949: Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP; Reliability Indicator: NOT ESTABLISHED; Terminal Type and Quantity: 4 STANDOFF, SOLDER LUG; Frequency Rating: 20.0 HERTZ MINIMUM AND 200.0 HERTZ MAXIMUM SINGLE COMPONENT. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-227-7769 still in active supply?

NSN 5950-00-227-7769 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