PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SMC422657Transformer,audio Frequency

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5950-00-034-0947 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-034-0947 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-034-0947. Primary manufacturer part number: SMC422657.
Features
  • Transformer,audio Frequency — FSC 5950
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Terminal Type and Quantity: 9 PIN
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Reliability Indicator: NOT ESTABLISHED
  • Impedance Rating in Ohms: 233.0 NOMINAL AND 367.0 NOMINAL AND 600.0 NOMINAL SINGLE COMPONENT FIRST SECONDARY
  • Maximum Transformer Power Rating: 250.0 MILLIWATTS 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 5950-00-034-0947, 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 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 19 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-034-0947
Primary Part NumberSMC422657
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Terminal Type and Quantity9 PIN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Impedance Rating in Ohms233.0 NOMINAL AND 367.0 NOMINAL AND 600.0 NOMINAL SINGLE COMPONENT FIRST SECONDARY
Maximum Transformer Power Rating250.0 MILLIWATTS SINGLE COMPONENT
Frequency Rating250.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Impedance Rating in Ohms3800.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Length1.310 INCHES MAXIMUM IN
Inclosure TypeHERMETICALLY SEALED
Body Width1.310 INCHES MAXIMUM IN
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Body Height1.750 INCHES MAXIMUM IN
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Mounting Facility Quantity2 SINGLE GROUP
Impedance Rating in Ohms16000.0 NOMINAL SINGLE COMPONENT SECOND SECONDARY
Distance Between Mounting Facility Centers1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5315-00-352-1909637899 INTERCHANGEABLE
Pin,cam Anchor
Am General Llc
4820-00-868-723239953F INTERCHANGEABLE
Diaphragm,valve,flat
Griswold Industries Dba Cla-Val Co
Cross-Reference Index
Part NumberManufacturer
SMC422657 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
XT11482 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
XT11482 Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories (USA)
39953 Freed Transformer Co (USA)
Related Parts
5315-00-352-1909INTERCHANGEABLE
PIN,CAM ANCHOR
637899
4820-00-868-7232INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
39953F

Frequently Asked Questions

What is NSN 5950-00-034-0947?

NSN 5950-00-034-0947 is a Transformer,audio Frequency, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-034-0947?

NSN 5950-00-034-0947 has 4 cross-referenced part numbers: SMC422657 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), XT11482 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), XT11482 (Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories), 39953 (Freed Transformer Co).

What NSN replaces 5950-00-034-0947?

There are 2 known substitutes for 5950-00-034-0947: 5315-00-352-1909, 4820-00-868-7232. Verify interchangeability with system specifications before substitution.

What are the specifications of SMC422657?

Key specifications for SMC422657: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Thread Quantity Per Inch: 32 SINGLE GROUP; Terminal Type and Quantity: 9 PIN; Mounting Method: THREADED STUD(S) SINGLE GROUP. 19 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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