The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-879-3439, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Coast/advanced Chip Magnetics, Inc.. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-879-3439 |
| Primary Part Number | 40561-2 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Coast/advanced Chip Magnetics, Inc. |
| Status | ACTIVE |
| Transformer Function | OUTPUT |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Mounting Method | THREADED STUD(S) SINGLE GROUP |
| Body Width | 0.938 INCHES MAXIMUM IN |
| Body Height | 0.844 INCHES MAXIMUM IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 90.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Impedance Rating in Ohms | 16.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Distance Between Mounting Facility Centers | 1.172 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Nominal Thread Size | 0.112 INCHES SINGLE GROUP IN |
| Maximum Operating Temp | 105.0 CELSIUS DEGC |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 275.0 HERTZ MINIMUM AND 300.0 HERTZ MAXIMUM SINGLE COMPONENT |
| Terminal Type and Quantity | 4 WIRE LEAD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 40561-2 | Coast/advanced Chip Magnetics, Inc. (USA) |
| C8647 | Electronic Transformer Corp Div Electronic Transformer Corporation (USA) |
| A8219 | Autodyne Manufacturing Co Inc (USA) |
| AT-2022 | Hytronics Corp. (USA) |
| Reference | Meaning |
|---|---|
| C53-0024-2 | 5/9 Secondary reference Andrea Electronics Corporation |
| C52-0024-2 | 5/9 Secondary reference Andrea Electronics Corporation |
| SM-C-596628-2 | 3/2 Design control — primary reference U.S. Government activity |
| C52-0024-002 | 5/9 Secondary reference Andrea Electronics Corporation |
| SM-C-596628-2 | 5/9 Secondary reference Valcore Manufacturing Llc Dba Use CAGE Code 04ye2 for Cataloging |
NSN 5950-00-879-3439 is a Transformer,audio Frequency, manufactured by Coast/advanced Chip Magnetics, Inc., classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-879-3439 has 4 manufacturer part numbers on file: 40561-2 (Coast/advanced Chip Magnetics, Inc.), C8647 (Electronic Transformer Corp Div Electronic Transformer Corporation), A8219 (Autodyne Manufacturing Co Inc), AT-2022 (Hytronics Corp.).
1 possible match (shared part number, not a government interchangeability claim): 5360-01-235-3023. Verify interchangeability with system specifications before substitution.
Key specifications for 40561-2: Transformer Function: OUTPUT; Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Mounting Method: THREADED STUD(S) SINGLE GROUP. 16 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.