PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

489Transformer,audio Frequency

R K Mfg Co · NSN 5950-00-645-5223 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-5223 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-5223. Primary manufacturer part number: 489.
Features
  • Transformer,audio Frequency — FSC 5950
  • Mounting Method: FLANGE AND SLOT SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
  • Impedance Rating in Ohms: 16.0 NOMINAL SINGLE COMPONENT FIRST SECONDARY
  • Maximum Transformer Power Rating: 10.0 WATTS SINGLE COMPONENT
  • Frequency Rating: 50.0 HERTZ MINIMUM AND 14.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
  • Body Width: 2.625 INCHES NOMINAL IN
  • Impedance Rating in Ohms: 600.0 NOMINAL SINGLE COMPONENT SECOND SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-645-5223, 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 R K Mfg Co. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5950-00-645-5223
Primary Part Number489
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerR K Mfg Co
StatusACTIVE
Mounting MethodFLANGE AND SLOT SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Impedance Rating in Ohms16.0 NOMINAL SINGLE COMPONENT FIRST SECONDARY
Maximum Transformer Power Rating10.0 WATTS SINGLE COMPONENT
Frequency Rating50.0 HERTZ MINIMUM AND 14.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Body Width2.625 INCHES NOMINAL IN
Impedance Rating in Ohms600.0 NOMINAL SINGLE COMPONENT SECOND SECONDARY
Impedance Rating in Ohms10000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Height3.125 INCHES NOMINAL IN
Mounting Slot Width0.188 INCHES NOMINAL SINGLE GROUP IN
Mounting Facility Quantity4 SINGLE GROUP
Body Length2.625 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity8 WIRE LEAD
Inclosure TypePARTIALLY INCLOSED, DOUBLE SHELL
Center to Center Distance Between Mounting Facilities Parallel to Length1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5935-00-140-5692489 INTERCHANGEABLE
Jack,tip
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
6135-00-754-8191 INTERCHANGEABLE
Battery,nonrechargeable
5915-00-971-4859HRN426 INTERCHANGEABLE
Network,computer Ar
Hamby Corporation
2805-00-986-4298967P INTERCHANGEABLE
Piston,internal Combustion Engin
Federal-Mogul Corp Government Sales Dept
5950-01-062-2518C504000266 INTERCHANGEABLE
Transformer,audio Frequency
Kearfott Corporation Div Guidance and Navigation Division
5980-01-071-1141 INTERCHANGEABLE
Light Emitting Diode
5305-01-533-3728489 INTERCHANGEABLE
Screw,machine
Hutchinson Industries, Inc Div Defense and Industry
5940-01-545-69721000588 INTERCHANGEABLE
Terminal,stud
General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp
Cross-Reference Index
Part NumberManufacturer
489 R K Mfg Co (USA)
AM489 American Magnetics Corp (USA)
Related Parts
5935-00-140-5692INTERCHANGEABLE
JACK,TIP
489
6135-00-754-8191INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
5915-00-971-4859INTERCHANGEABLE
NETWORK,COMPUTER AR
HRN426
2805-00-986-4298INTERCHANGEABLE
PISTON,INTERNAL COMBUSTION ENGIN
967P
5950-01-062-2518INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
C504000266
5980-01-071-1141INTERCHANGEABLE
LIGHT EMITTING DIODE
5305-01-533-3728INTERCHANGEABLE
SCREW,MACHINE
489
5940-01-545-6972INTERCHANGEABLE
TERMINAL,STUD
1000588

Frequently Asked Questions

What is NSN 5950-00-645-5223?

NSN 5950-00-645-5223 is a Transformer,audio Frequency, manufactured by R K Mfg Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-645-5223?

NSN 5950-00-645-5223 has 2 cross-referenced part numbers: 489 (R K Mfg Co), AM489 (American Magnetics Corp).

What NSN replaces 5950-00-645-5223?

There are 8 known substitutes for 5950-00-645-5223: 5935-00-140-5692, 6135-00-754-8191, 5915-00-971-4859 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 489?

Key specifications for 489: Mounting Method: FLANGE AND SLOT SINGLE GROUP; Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT; Impedance Rating in Ohms: 16.0 NOMINAL SINGLE COMPONENT FIRST SECONDARY; Maximum Transformer Power Rating: 10.0 WATTS SINGLE COMPONENT. 17 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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