The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-262-9081, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Magnetika Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-262-9081 |
| Primary Part Number | CSF-866 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Magnetika Inc |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Body Outside Diameter | 0.750 INCHES NOMINAL IN |
| Mounting Method | TERMINAL SINGLE GROUP |
| Maximum Transformer Power Rating | 2.0 WATTS SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 540.0 MINIMUM AND 660.0 MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Maximum Operating Temp | 105.0 CELSIUS DEGC |
| Body Length | 0.520 INCHES MAXIMUM IN |
| Winding Operating Current | 4.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 30.0 KILOHERTZ MAXIMUM SINGLE COMPONENT |
| Terminal Type and Quantity | 7 WIRE LEAD |
| 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 |
|---|---|
| CSF-866 | Magnetika Inc (USA) |
| PICO-4900 | Pico Electronics Inc (USA) |
| A3012898-1 | L3harris Technologies, Inc. Dba Harris Corporation (USA) |
| 515478-1 | L3harris Technologies, Inc. Dba Harris Corporation (USA) |
| Reference | Meaning |
|---|---|
| A3012898-1 | 3/2 Design control — primary reference U.S. Government activity |
| CSF-866 | 5/9 Secondary reference U.S. Government activity |
NSN 5950-01-262-9081 is a Transformer,audio Frequency, manufactured by Magnetika Inc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-262-9081 has 4 manufacturer part numbers on file: CSF-866 (Magnetika Inc), PICO-4900 (Pico Electronics Inc), A3012898-1 (L3harris Technologies, Inc. Dba Harris Corporation), 515478-1 (L3harris Technologies, Inc. Dba Harris Corporation).
Key specifications for CSF-866: Inclosure Type: FULLY INCLOSED; Body Outside Diameter: 0.750 INCHES NOMINAL IN; Mounting Method: TERMINAL SINGLE GROUP; Maximum Transformer Power Rating: 2.0 WATTS SINGLE COMPONENT. 12 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.