PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

203807Transformer,audio Frequency

Stromberg-Carlson Corp a Plessey Telecommunications Co · NSN 5950-00-646-3618 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-646-3618 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-646-3618. Primary manufacturer part number: 203807.
Features
  • Transformer,audio Frequency — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Operating Current: 25.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
  • Maximum Transformer Power Rating: 3.0 WATTS SINGLE COMPONENT
  • Mounting Facility Quantity: 2 SINGLE GROUP
  • Body Width: 1.312 INCHES NOMINAL IN
  • Distance Between Mounting Facility Centers: 0.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Body Height: 1.125 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 5950-00-646-3618, 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 Stromberg-Carlson Corp a Plessey Telecommunications Co. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-646-3618
Primary Part Number203807
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerStromberg-Carlson Corp a Plessey Telecommunications Co
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Winding Operating Current25.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Maximum Transformer Power Rating3.0 WATTS SINGLE COMPONENT
Mounting Facility Quantity2 SINGLE GROUP
Body Width1.312 INCHES NOMINAL IN
Distance Between Mounting Facility Centers0.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Height1.125 INCHES NOMINAL IN
Body Length1.375 INCHES NOMINAL IN
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Primary to Secondary Turn Ratio1 TO 4 SINGLE COMPONENT
Frequency Rating600.0 HERTZ MAXIMUM SINGLE COMPONENT
Inclosure TypeOPEN
Mounting Hole Diameter0.188 INCHES NOMINAL SINGLE GROUP IN
Winding Operating Current250.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Impedance Rating in Ohms50.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Terminal Type and Quantity4 TAB, SOLDER LUG
Impedance Rating in Ohms450.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5915-00-784-11332162612 INTERCHANGEABLE
Filter,band Pass
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
203807 Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
203807-000 Stromberg-Carlson Corp a Plessey Telecommunications Co (USA)
203807-000 Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
203807 PRIMARY Stromberg-Carlson Corp a Plessey Telecommunications Co (USA)
Related Parts
5915-00-784-1133INTERCHANGEABLE
FILTER,BAND PASS
2162612

Frequently Asked Questions

What is NSN 5950-00-646-3618?

NSN 5950-00-646-3618 is a Transformer,audio Frequency, manufactured by Stromberg-Carlson Corp a Plessey Telecommunications Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-646-3618?

NSN 5950-00-646-3618 has 4 cross-referenced part numbers: 203807 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc), 203807-000 (Stromberg-Carlson Corp a Plessey Telecommunications Co), 203807-000 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc), 203807 (Stromberg-Carlson Corp a Plessey Telecommunications Co).

What NSN replaces 5950-00-646-3618?

There is 1 known substitute for 5950-00-646-3618: 5915-00-784-1133. Verify interchangeability with system specifications before substitution.

What are the specifications of 203807?

Key specifications for 203807: Reliability Indicator: NOT ESTABLISHED; Winding Operating Current: 25.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY; Maximum Transformer Power Rating: 3.0 WATTS SINGLE COMPONENT; Mounting Facility Quantity: 2 SINGLE GROUP. 18 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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