PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

257700Transformer,audio Frequency

Cae Usa Inc. · NSN 5950-00-851-1922 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-851-1922 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-851-1922. Primary manufacturer part number: 257700.
Features
  • Transformer,audio Frequency — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Body Width: 1.625 INCHES NOMINAL IN
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Inclosure Type: HERMETICALLY SEALED
  • Body Length: 1.625 INCHES NOMINAL IN
  • Body Height: 2.375 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 5950-00-851-1922, 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 Cae Usa Inc.. Government technical data includes 19 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-851-1922
Primary Part Number257700
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerCae Usa Inc.
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Body Width1.625 INCHES NOMINAL IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Body Length1.625 INCHES NOMINAL IN
Body Height2.375 INCHES NOMINAL IN
Impedance Rating in Ohms10000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Distance Between Mounting Facility Centers1.688 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Maximum Transformer Power Rating50.0 MILLIWATTS SINGLE COMPONENT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Terminal Type and Quantity5 TAB, SOLDER LUG
Primary to Secondary Turn Ratio1 TO 3 SINGLE COMPONENT
Winding Operating Current1.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting Facility Quantity2 SINGLE GROUP
Impedance Rating in Ohms90000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Frequency Rating40.0 HERTZ MINIMUM AND 30.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5805-00-194-9511900104 INTERCHANGEABLE
Key,telegraph
Naval Ship Systems Command
3110-00-404-0810645200 INTERCHANGEABLE
Bearing,roller,needle
Goodrich Corporation Dba Goodrich Corp
5310-00-496-5972J47 INTERCHANGEABLE
Nut
Dixon Valve & Coupling Company, Llc Div Dixon Fire
5325-00-565-261560488 INTERCHANGEABLE
Ring,retaining
International Business Machines Corp Parts Order Center Dept E - 54
4810-01-011-4113J4-7 INTERCHANGEABLE
Parts Kit,solenoid Valve
Parker-Hannifin Corporation Dba Pneutronics Div Fluid Control Division
6515-01-504-7131C9291 INTERCHANGEABLE
Blade,arthroscopic,surgical
Linvatec Corporation Div Linvatec
Cross-Reference Index
Part NumberManufacturer
257700 Raytheon Technical Services Company (USA)
C9291 Electronic Transformer Corp Div Electronic Transformer Corporation (USA)
JNB1 Inrcore, Llc Div Inrcore (USA)
J47 B G Laboratories Inc. (USA)
257700 PRIMARY Cae Usa Inc. (USA)
Related Parts
5805-00-194-9511INTERCHANGEABLE
KEY,TELEGRAPH
900104
3110-00-404-0810INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
645200
5310-00-496-5972INTERCHANGEABLE
NUT
J47
5325-00-565-2615INTERCHANGEABLE
RING,RETAINING
60488
4810-01-011-4113INTERCHANGEABLE
PARTS KIT,SOLENOID VALVE
J4-7
6515-01-504-7131INTERCHANGEABLE
BLADE,ARTHROSCOPIC,SURGICAL
C9291

Frequently Asked Questions

What is NSN 5950-00-851-1922?

NSN 5950-00-851-1922 is a Transformer,audio Frequency, manufactured by Cae Usa Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-851-1922?

NSN 5950-00-851-1922 has 5 cross-referenced part numbers: 257700 (Raytheon Technical Services Company), C9291 (Electronic Transformer Corp Div Electronic Transformer Corporation), JNB1 (Inrcore, Llc Div Inrcore), J47 (B G Laboratories Inc.), 257700 (Cae Usa Inc.).

What NSN replaces 5950-00-851-1922?

There are 6 known substitutes for 5950-00-851-1922: 5805-00-194-9511, 3110-00-404-0810, 5310-00-496-5972 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 257700?

Key specifications for 257700: Overall Height: 2.750 INCHES NOMINAL IN; Reliability Indicator: NOT ESTABLISHED; Body Width: 1.625 INCHES NOMINAL IN; Mounting Method: THREADED STUD(S) SINGLE GROUP. 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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