PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-3801Transformer,audio Frequency

Emerson Electric Co White-Rodgers Div · NSN 5950-00-647-8667 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-647-8667 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-647-8667. Primary manufacturer part number: A-3801.
Features
  • Transformer,audio Frequency — FSC 5950
  • Maximum Transformer Power Rating: 35.0 WATTS SINGLE COMPONENT
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Frequency Rating: 70.0 HERTZ MINIMUM AND 7.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
  • Terminal Type and Quantity: 9 WIRE LEAD
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Mounting Slot Width: 0.174 INCHES MINIMUM AND 0.203 INCHES MAXIMUM SINGLE GROUP IN
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP 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 5950-00-647-8667, 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 Emerson Electric Co White-Rodgers Div. Government technical data includes 15 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-647-8667
Primary Part NumberA-3801
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerEmerson Electric Co White-Rodgers Div
StatusCANCELLED
Maximum Transformer Power Rating35.0 WATTS SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Frequency Rating70.0 HERTZ MINIMUM AND 7.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Terminal Type and Quantity9 WIRE LEAD
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting Slot Width0.174 INCHES MINIMUM AND 0.203 INCHES MAXIMUM SINGLE GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Length2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting MethodFLANGE AND SLOT SINGLE GROUP
Primary to Secondary Turn Ratio1 TO 3.64 SINGLE COMPONENT
Impedance Rating in Ohms8.0 NOMINAL AND 15.0 NOMINAL AND 250.0 NOMINAL AND 500.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Impedance Rating in Ohms6600.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Center to Center Distance Between Mounting Facilities Parallel to Width2.188 INCHES MINIMUM AND 2.250 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypeHERMETICALLY SEALED
Winding Operating Current150.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
4730-00-159-0334A3801 INTERCHANGEABLE
Strainer Element,sediment
Eaton Aerospace Llc Div Fluid and Electrical Distribution Division
4420-00-360-2158 INTERCHANGEABLE
Cooler,fluid,industrial
2530-00-930-9580 INTERCHANGEABLE
Knuckle Assembly,axle
5962-01-285-8233 INTERCHANGEABLE
Microcircuit,digital
Cross-Reference Index
Part NumberManufacturer
A-3801 Emerson Electric Co White-Rodgers Div (USA)
24S57 Components Corp of America (USA)
8059033 Us Army Aviation and Missile Command (USA)
24S57 Thordarson Inc (USA)
Related Parts
4730-00-159-0334INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
A3801
4420-00-360-2158INTERCHANGEABLE
COOLER,FLUID,INDUSTRIAL
2530-00-930-9580INTERCHANGEABLE
KNUCKLE ASSEMBLY,AXLE
5962-01-285-8233INTERCHANGEABLE
MICROCIRCUIT,DIGITAL

Frequently Asked Questions

What is NSN 5950-00-647-8667?

NSN 5950-00-647-8667 is a Transformer,audio Frequency, manufactured by Emerson Electric Co White-Rodgers Div, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-647-8667?

NSN 5950-00-647-8667 has 4 cross-referenced part numbers: A-3801 (Emerson Electric Co White-Rodgers Div), 24S57 (Components Corp of America), 8059033 (Us Army Aviation and Missile Command), 24S57 (Thordarson Inc).

What NSN replaces 5950-00-647-8667?

There are 4 known substitutes for 5950-00-647-8667: 4730-00-159-0334, 4420-00-360-2158, 2530-00-930-9580 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-3801?

Key specifications for A-3801: Maximum Transformer Power Rating: 35.0 WATTS SINGLE COMPONENT; Mounting Facility Quantity: 4 SINGLE GROUP; Frequency Rating: 70.0 HERTZ MINIMUM AND 7.0 KILOHERTZ MAXIMUM SINGLE COMPONENT; Terminal Type and Quantity: 9 WIRE LEAD. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-647-8667 still in active supply?

NSN 5950-00-647-8667 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.
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