The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-120-9188, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Navy, United States Department of the Spawar Dba Space and Naval Wafare Command. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-120-9188 |
| Primary Part Number | 74E10N303 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Navy, United States Department of the Spawar Dba Space and Naval Wafare Command |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Mounting Method | TERMINAL SINGLE GROUP |
| Body Width | 1.230 INCHES NOMINAL IN |
| Body Height | 1.260 INCHES NOMINAL IN |
| Maximum Transformer Power Rating | 100.0 MILLIWATTS SINGLE COMPONENT |
| Winding Function and Quantity | 2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 150.0 NOMINAL SINGLE COMPONENT ALL PRIMARY |
| Impedance Rating in Ohms | 150.0 NOMINAL SINGLE COMPONENT ALL SECONDARY |
| Winding Shielding Method | INTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT |
| Maximum Operating Temp | 75.0 CELSIUS DEGC |
| Body Length | 1.670 INCHES NOMINAL IN |
| Winding Operating Current | 50.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT ALL PRIMARY |
| Winding Operating Current | 50.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT ALL SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 5.0 KILOHERTZ MAXIMUM SINGLE COMPONENT |
| Terminal Type and Quantity | 9 PIN |
| 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 |
|---|---|
| 74E10N303 PRIMARY | Navy, United States Department of the Spawar Dba Space and Naval Wafare Command (USA) |
| 25470 | Torotel, Inc. Div Torotel Products, Inc. (USA) |
| 74E10N303 | Magnetika Inc (USA) |
| Reference | Meaning |
|---|---|
| 74E10N303 | 5/9 Secondary reference Microtran Co Inc |
| 74E10N303 | 5/9 Secondary reference U.S. Government activity |
| 74E10N303 | 5/9 Secondary reference Torotel, Inc. Div Torotel Products, Inc. |
| 74E10N303 | 5/9 Secondary reference U.S. Government activity |
| 74E10N303 | 5/9 Secondary reference U.S. Government activity |
| 74E10N303 | 5/2 Secondary reference U.S. Government activity |
NSN 5950-01-120-9188 is a Transformer,audio Frequency, manufactured by Navy, United States Department of the Spawar Dba Space and Naval Wafare Command, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-120-9188 has 3 manufacturer part numbers on file: 74E10N303 (Navy, United States Department of the Spawar Dba Space and Naval Wafare Command), 25470 (Torotel, Inc. Div Torotel Products, Inc.), 74E10N303 (Magnetika Inc).
Key specifications for 74E10N303: Inclosure Type: FULLY INCLOSED; Mounting Method: TERMINAL SINGLE GROUP; Body Width: 1.230 INCHES NOMINAL IN; Body Height: 1.260 INCHES NOMINAL IN. 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.