PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

304878Transformer,audio Frequency

Naval Ship Systems Command · NSN 5950-00-231-4458 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-231-4458 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-231-4458. Primary manufacturer part number: 304878.
Features
  • Transformer,audio Frequency — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Body Length: 1.250 INCHES NOMINAL IN
  • Body Height: 1.750 INCHES NOMINAL IN
  • Inclosure Type: HERMETICALLY SEALED
  • Terminal Type and Quantity: 4 TAB, SOLDER LUG
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Mounting Facility Quantity: 2 SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-231-4458, 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 Naval Ship Systems Command. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-231-4458
Primary Part Number304878
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusCANCELLED
Reliability IndicatorNOT ESTABLISHED
Body Length1.250 INCHES NOMINAL IN
Body Height1.750 INCHES NOMINAL IN
Inclosure TypeHERMETICALLY SEALED
Terminal Type and Quantity4 TAB, SOLDER LUG
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting Facility Quantity2 SINGLE GROUP
Impedance Rating in Ohms600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Frequency Rating100.0 HERTZ MINIMUM AND 3.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Primary to Secondary Turn Ratio1 TO 4-5/64 SINGLE COMPONENT
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT
Distance Between Mounting Facility Centers0.928 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Current5.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Width1.250 INCHES NOMINAL IN
Impedance Rating in Ohms10000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Maximum Transformer Power Rating100.0 MILLIWATTS SINGLE COMPONENT
Thread Quantity Per Inch32 SINGLE GROUP
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5910-00-080-7413913-2998-000 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5975-00-141-0546TWOLB-4 INTERCHANGEABLE
Conduit Outlet
Killark Electric Mfg Co
3110-00-198-2169 INTERCHANGEABLE
Cone and Rollers,tapered Roller
5930-00-591-859215123 INTERCHANGEABLE
Retainer,electrical Switch
Microlab/fxr Llc
5950-00-701-0021TS-1052 INTERCHANGEABLE
Transformer,audio Frequency
Magnetic Components Inc
5930-00-764-0860 INTERCHANGEABLE
Switch,toggle
5940-00-926-0030 INTERCHANGEABLE
Terminal,feedthru
5940-00-926-0033 INTERCHANGEABLE
Terminal,stud
5950-01-132-16169100-1637 INTERCHANGEABLE
Coil,radio Frequency
Keysight Technologies Inc
5985-01-160-341715123 INTERCHANGEABLE
Diplexer
Ryt Industries Inc
Cross-Reference Index
Part NumberManufacturer
15123 Espey Mfg and Electronics Corp (USA)
304878 PRIMARY Naval Ship Systems Command (USA)
10128 Eaton Corp Electronic Instrumentation Div Los Angeles Plant (USA)
Related Parts
5910-00-080-7413INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
913-2998-000
5975-00-141-0546INTERCHANGEABLE
CONDUIT OUTLET
TWOLB-4
3110-00-198-2169INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
5930-00-591-8592INTERCHANGEABLE
RETAINER,ELECTRICAL SWITCH
15123
5950-00-701-0021INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
TS-1052
5930-00-764-0860INTERCHANGEABLE
SWITCH,TOGGLE
5940-00-926-0030INTERCHANGEABLE
TERMINAL,FEEDTHRU
5940-00-926-0033INTERCHANGEABLE
TERMINAL,STUD
5950-01-132-1616INTERCHANGEABLE
COIL,RADIO FREQUENCY
9100-1637
5985-01-160-3417INTERCHANGEABLE
DIPLEXER
15123
7930-01-236-8942INTERCHANGEABLE
RINSE ADDITIVE,DISHWASHING
15123
5975-01-368-4718INTERCHANGEABLE
DRAWER,ELECTRICAL EQUIPMENT
15123

Frequently Asked Questions

What is NSN 5950-00-231-4458?

NSN 5950-00-231-4458 is a Transformer,audio Frequency, manufactured by Naval Ship Systems Command, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-231-4458?

NSN 5950-00-231-4458 has 3 cross-referenced part numbers: 15123 (Espey Mfg and Electronics Corp), 304878 (Naval Ship Systems Command), 10128 (Eaton Corp Electronic Instrumentation Div Los Angeles Plant).

What NSN replaces 5950-00-231-4458?

There are 12 known substitutes for 5950-00-231-4458: 5910-00-080-7413, 5975-00-141-0546, 3110-00-198-2169 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 304878?

Key specifications for 304878: Reliability Indicator: NOT ESTABLISHED; Body Length: 1.250 INCHES NOMINAL IN; Body Height: 1.750 INCHES NOMINAL IN; Inclosure Type: HERMETICALLY SEALED. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-231-4458 still in active supply?

NSN 5950-00-231-4458 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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