PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42640Transformer,audio Frequency

Coast/advanced Chip Magnetics, Inc. · NSN 5950-00-445-7549 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-445-7549 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-445-7549. Primary manufacturer part number: 42640.
Features
  • Transformer,audio Frequency — FSC 5950
  • Mounting Hole Diameter: 0.218 INCHES NOMINAL SINGLE GROUP IN
  • Primary to Secondary Turn Ratio: 1 TO 1 SINGLE COMPONENT
  • Body Height: 4.250 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 2.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Mounting Method: FLANGE AND UNTHREADED HOLE(S) 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 5950-00-445-7549, 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 Coast/advanced Chip Magnetics, Inc.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-445-7549
Primary Part Number42640
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerCoast/advanced Chip Magnetics, Inc.
StatusACTIVE
Mounting Hole Diameter0.218 INCHES NOMINAL SINGLE GROUP IN
Primary to Secondary Turn Ratio1 TO 1 SINGLE COMPONENT
Body Height4.250 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width2.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Facility Quantity4 SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length3.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Length4.460 INCHES NOMINAL IN
Inclosure TypeHERMETICALLY SEALED
Terminal Type and Quantity5 TURRET
Reliability IndicatorNOT ESTABLISHED
Body Width3.625 INCHES NOMINAL IN
Frequency Rating50.0 HERTZ MINIMUM AND 10.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5950-00-059-55303890067-101 INTERCHANGEABLE
Transformer,power Autotransforme
Lockheed Martin Corp
2805-00-288-3852000-119-1003 INTERCHANGEABLE
Valve,poppet,engine
Tvh Parts Co.
2930-00-306-56565674 INTERCHANGEABLE
Manifold,fluid Cooler
R.h. Industries, Inc.
5330-00-484-83935674 INTERCHANGEABLE
Gasket
Megator Corp
5950-00-715-85917913165 INTERCHANGEABLE
Transformer,power
Us Army Aviation and Missile Command
4710-01-033-1754 INTERCHANGEABLE
Tube Assembly,metal
5950-01-146-17675674 INTERCHANGEABLE
Transformer,power
Sartron, Inc
6515-01-295-4917 INTERCHANGEABLE
Suction Kit,tracheal
5310-01-379-4713 INTERCHANGEABLE
Nut,sheet Spring
5340-01-674-9038W-PE-01 4000 TAN 499 INTERCHANGEABLE
Strap,webbing
Webbing Source Inc
Cross-Reference Index
Part NumberManufacturer
42640 Coast/advanced Chip Magnetics, Inc. (USA)
ST-200E Eaton Corp Electronic Instrumentation Div Los Angeles Plant (USA)
ST-200E Tegam, Inc. (USA)
5674 Precision Electronics, Inc (USA)
4-04210-001 Arma Div Ambac Industries Inc
Related Parts
5950-00-059-5530INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
3890067-101
2805-00-288-3852INTERCHANGEABLE
VALVE,POPPET,ENGINE
000-119-1003
2930-00-306-5656INTERCHANGEABLE
MANIFOLD,FLUID COOLER
5674
5330-00-484-8393INTERCHANGEABLE
GASKET
5674
5950-00-715-8591INTERCHANGEABLE
TRANSFORMER,POWER
7913165
4710-01-033-1754INTERCHANGEABLE
TUBE ASSEMBLY,METAL
5950-01-146-1767INTERCHANGEABLE
TRANSFORMER,POWER
5674
6515-01-295-4917INTERCHANGEABLE
SUCTION KIT,TRACHEAL
5310-01-379-4713INTERCHANGEABLE
NUT,SHEET SPRING
5340-01-674-9038INTERCHANGEABLE
STRAP,WEBBING
W-PE-01 4000 TAN 499

Frequently Asked Questions

What is NSN 5950-00-445-7549?

NSN 5950-00-445-7549 is a Transformer,audio Frequency, manufactured by Coast/advanced Chip Magnetics, Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-445-7549?

NSN 5950-00-445-7549 has 5 cross-referenced part numbers: 42640 (Coast/advanced Chip Magnetics, Inc.), ST-200E (Eaton Corp Electronic Instrumentation Div Los Angeles Plant), ST-200E (Tegam, Inc.), 5674 (Precision Electronics, Inc), 4-04210-001 (Arma Div Ambac Industries Inc).

What NSN replaces 5950-00-445-7549?

There are 10 known substitutes for 5950-00-445-7549: 5950-00-059-5530, 2805-00-288-3852, 2930-00-306-5656 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 42640?

Key specifications for 42640: Mounting Hole Diameter: 0.218 INCHES NOMINAL SINGLE GROUP IN; Primary to Secondary Turn Ratio: 1 TO 1 SINGLE COMPONENT; Body Height: 4.250 INCHES NOMINAL IN; Center to Center Distance Between Mounting Facilities Parallel to Width: 2.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 14 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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