PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20692Transformer,audio Frequency

Freed Transformer Co · NSN 5950-00-645-1917 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-1917 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-1917. Primary manufacturer part number: 20692.
Features
  • Transformer,audio Frequency — FSC 5950
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Body Width: 1.500 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Terminal Type and Quantity: 7 SOLDER STUD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-645-1917, 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-645-1917
Primary Part Number20692
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Center to Center Distance Between Mounting Facilities Parallel to Width1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Quantity Per Inch32 SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Body Width1.500 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity7 SOLDER STUD
Inclosure TypeHERMETICALLY SEALED
Body Height2.500 INCHES NOMINAL IN
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Transformer FunctionINPUT
Body Length1.500 INCHES NOMINAL IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Impedance Rating in Ohms100000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Frequency Rating200.0 HERTZ MINIMUM AND 5.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Impedance Rating in Ohms16.0 NOMINAL AND 150.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Primary to Secondary Turn Ratio1 TO 26 SINGLE COMPONENT
Winding Shielding MethodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5133-00-189-9265 INTERCHANGEABLE
Drill,twist
6140-00-283-1302VNC22 INTERCHANGEABLE
Battery,storage
Mobile Energy Products, Inc. Dba Electro Energy
5961-01-073-430320692 INTERCHANGEABLE
Transistor
Tdk-Lambda Americas Inc. Div High Power Division
3020-01-189-6699N1234 INTERCHANGEABLE
Gear Rack
Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division
5365-01-227-4701 INTERCHANGEABLE
Spacer,hoist
5998-01-262-583820770 INTERCHANGEABLE
Circuit Card Assembly
Basic American Inc
5305-01-386-6162M-2555 INTERCHANGEABLE
Screw,machine
Textron Lycoming Inc Williamsport Plant
6240-01-463-5971 INTERCHANGEABLE
Lamp,fluorescent
Cross-Reference Index
Part NumberManufacturer
M2555 Microtran Co Inc (USA)
20692 PRIMARY Freed Transformer Co (USA)
N1234 Princeton Tool Inc Div Paragon Precision (USA)
8893081 Us Army Aviation and Missile Command (USA)
Related Parts
5133-00-189-9265INTERCHANGEABLE
DRILL,TWIST
6140-00-283-1302INTERCHANGEABLE
BATTERY,STORAGE
VNC22
5961-01-073-4303INTERCHANGEABLE
TRANSISTOR
20692
3020-01-189-6699INTERCHANGEABLE
GEAR RACK
N1234
5365-01-227-4701INTERCHANGEABLE
SPACER,HOIST
5998-01-262-5838INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
20770
5305-01-386-6162INTERCHANGEABLE
SCREW,MACHINE
M-2555
6240-01-463-5971INTERCHANGEABLE
LAMP,FLUORESCENT

Frequently Asked Questions

What is NSN 5950-00-645-1917?

NSN 5950-00-645-1917 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 5950-00-645-1917?

NSN 5950-00-645-1917 has 4 cross-referenced part numbers: M2555 (Microtran Co Inc), 20692 (Freed Transformer Co), N1234 (Princeton Tool Inc Div Paragon Precision), 8893081 (Us Army Aviation and Missile Command).

What NSN replaces 5950-00-645-1917?

There are 8 known substitutes for 5950-00-645-1917: 5133-00-189-9265, 6140-00-283-1302, 5961-01-073-4303 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20692?

Key specifications for 20692: Center to Center Distance Between Mounting Facilities Parallel to Width: 1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Thread Quantity Per Inch: 32 SINGLE GROUP; Reliability Indicator: NOT ESTABLISHED; 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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