The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-980-9309, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Electronic Transformer Corp Div Electronic Transformer Corporation. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-980-9309 |
| Primary Part Number | 83401 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Electronic Transformer Corp Div Electronic Transformer Corporation |
| Status | ACTIVE |
| Transformer Function | OUTPUT |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 1.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Mounting Method | FLANGE AND SLOT SINGLE GROUP |
| Body Width | 1.430 INCHES MAXIMUM IN |
| Body Height | 1.480 INCHES MAXIMUM IN |
| Maximum Transformer Power Rating | 3.0 WATTS SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 400.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Impedance Rating in Ohms | 8.0 NOMINAL AND 60.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Body Length | 1.812 INCHES MAXIMUM IN |
| Winding Operating Current | 10.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 300.0 HERTZ MINIMUM AND 3.0 KILOHERTZ MAXIMUM SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 0.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Terminal Type and Quantity | 6 TAB, SOLDER LUG |
| Mounting Slot Width | 0.156 INCHES NOMINAL SINGLE GROUP IN |
| 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 |
|---|---|
| 83401 | Electronic Transformer Corp Div Electronic Transformer Corporation (USA) |
| SM-C-454828 | Rayco Electronic Manufacturing, Inc. Div Rayco Electronics Mfg Inc (USA) |
| 30-9182 | Magnetic Components Inc (USA) |
| K7277 | Keytronics, Inc. Div Api Technologies Corp- Magnetics (USA) |
| PEI 2026 | Precision Electronics, Inc (USA) |
| Reference | Meaning |
|---|---|
| 293A1 | 5/9 Secondary reference A.e.york, Llc |
| SM-C-454828 | 3/2 Design control — primary reference U.S. Government activity |
| 57695 | 5/2 Secondary reference U.S. Government activity |
NSN 5950-00-980-9309 is a Transformer,audio Frequency, manufactured by Electronic Transformer Corp Div Electronic Transformer Corporation, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-980-9309 has 5 manufacturer part numbers on file: 83401 (Electronic Transformer Corp Div Electronic Transformer Corporation), SM-C-454828 (Rayco Electronic Manufacturing, Inc. Div Rayco Electronics Mfg Inc), 30-9182 (Magnetic Components Inc), K7277 (Keytronics, Inc. Div Api Technologies Corp- Magnetics), PEI 2026 (Precision Electronics, Inc).
2 possible matches (shared part number, not a government interchangeability claim): 1660-01-140-9399, 4820-01-215-4338. Verify interchangeability with system specifications before substitution.
Key specifications for 83401: Transformer Function: OUTPUT; Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Center to Center Distance Between Mounting Facilities Parallel to Length: 1.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 18 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.