The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-116-4384, 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 Div Magnetika/phillipsburg Location. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5950-00-116-4384 |
| Primary Part Number | 51999 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Magnetika Inc Div Magnetika/phillipsburg Location |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Mounting Method | TERMINAL SINGLE GROUP |
| Body Width | 0.600 INCHES MAXIMUM IN |
| Body Height | 0.700 INCHES MAXIMUM IN |
| Maximum Transformer Power Rating | 25.0 MILLIWATTS SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 18.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Impedance Rating in Ohms | 18.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Body Length | 0.800 INCHES MAXIMUM IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 12.0 KILOHERTZ MINIMUM AND 250.0 KILOHERTZ MAXIMUM SINGLE COMPONENT |
| Terminal Type and Quantity | 5 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 |
|---|---|
| 51999 PRIMARY | Magnetika Inc Div Magnetika/phillipsburg Location (USA) |
| 658-1013-000 | Standex Electronics, Inc. (USA) |
| 08-00472-000 PRIMARY | Raytheon Company (USA) |
| Reference | Meaning |
|---|---|
| 658-1013-000 | 5/9 Secondary reference Ncr Corp Power Systems Div |
| 51999 | 5/9 Secondary reference Opt Industries Inc Div of Electronika Inc |
| 71-2029 | 5/9 Secondary reference Vernitron Corp Aie Magnetics Div |
NSN 5950-00-116-4384 is a Transformer,audio Frequency, manufactured by Magnetika Inc Div Magnetika/phillipsburg Location, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-116-4384 has 3 manufacturer part numbers on file: 51999 (Magnetika Inc Div Magnetika/phillipsburg Location), 658-1013-000 (Standex Electronics, Inc.), 08-00472-000 (Raytheon Company).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-297-5590, 5985-01-600-2276. Verify interchangeability with system specifications before substitution.
Key specifications for 51999: Inclosure Type: FULLY INCLOSED; Mounting Method: TERMINAL SINGLE GROUP; Body Width: 0.600 INCHES MAXIMUM IN; Body Height: 0.700 INCHES MAXIMUM IN. 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.