PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

912-23Transformer,audio Frequency

Keysight Technologies Inc · NSN 5950-00-646-3151 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-646-3151 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-646-3151. Primary manufacturer part number: 912-23.
Features
  • Transformer,audio Frequency — FSC 5950
  • Terminal Type and Quantity: 6 WIRE LEAD
  • Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
  • Impedance Rating in Ohms: 500.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Body Width: 2.875 INCHES NOMINAL IN
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 2.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Maximum Transformer Power Rating: 6.0 WATTS SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-646-3151, 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 Keysight Technologies Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 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
NSN5950-00-646-3151
Primary Part Number912-23
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerKeysight Technologies Inc
StatusCANCELLED
Terminal Type and Quantity6 WIRE LEAD
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Impedance Rating in Ohms500.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Body Width2.875 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width2.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Maximum Transformer Power Rating6.0 WATTS SINGLE COMPONENT
Frequency Rating20.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Impedance Rating in Ohms8000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Center to Center Distance Between Mounting Facilities Parallel to Length2.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Height3.438 INCHES NOMINAL IN
Primary to Secondary Turn Ratio1 TO 4 SINGLE COMPONENT
Inclosure TypePARTIALLY INCLOSED, DOUBLE SHELL
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting Hole Diameter0.125 INCHES NOMINAL SINGLE GROUP IN
Body Length4.000 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5905-00-116-8556 INTERCHANGEABLE
Resistor,fixed,composition
5815-00-125-980583572KA INTERCHANGEABLE
Plate,guide
Lucent Technologies Inc Corporate Headquarters
5998-01-312-7526 INTERCHANGEABLE
Circuit Card Assembly
6145-01-528-3421 INTERCHANGEABLE
Braid,wire
Cross-Reference Index
Part NumberManufacturer
9120-0009 Hewlett-Packard Company Dba HP (USA)
912-23 Keysight Technologies, Inc. (USA)
912-23 PRIMARY Keysight Technologies Inc (USA)
9120-0009 Keysight Technologies, Inc. (USA)
9120-0009 Keysight Technologies Inc (USA)
912-23 Hewlett-Packard Company Dba HP (USA)
Related Parts
5905-00-116-8556INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5815-00-125-9805INTERCHANGEABLE
PLATE,GUIDE
83572KA
5998-01-312-7526INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
6145-01-528-3421INTERCHANGEABLE
BRAID,WIRE

Frequently Asked Questions

What is NSN 5950-00-646-3151?

NSN 5950-00-646-3151 is a Transformer,audio Frequency, manufactured by Keysight Technologies Inc, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-646-3151?

NSN 5950-00-646-3151 has 6 cross-referenced part numbers: 9120-0009 (Hewlett-Packard Company Dba HP), 912-23 (Keysight Technologies, Inc.), 912-23 (Keysight Technologies Inc), 9120-0009 (Keysight Technologies, Inc.), 9120-0009 (Keysight Technologies Inc) and 1 more.

What NSN replaces 5950-00-646-3151?

There are 4 known substitutes for 5950-00-646-3151: 5905-00-116-8556, 5815-00-125-9805, 5998-01-312-7526 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 912-23?

Key specifications for 912-23: Terminal Type and Quantity: 6 WIRE LEAD; Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP; Impedance Rating in Ohms: 500.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY; Body Width: 2.875 INCHES NOMINAL IN. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-646-3151 still in active supply?

NSN 5950-00-646-3151 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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