The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-020-3853, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5950-00-020-3853 |
| Primary Part Number | 334450 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Mounting Facility Quantity | 1 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Body Outside Diameter | 2.125 INCHES MAXIMUM IN |
| Mounting Method | UNTHREADED HOLE(S) SINGLE GROUP |
| Mounting Hole Diameter | 0.172 INCHES NOMINAL SINGLE GROUP IN |
| Winding Function and Quantity | 3 PRIMARY AND 2 SECONDARY SINGLE COMPONENT |
| Body Length | 1.250 INCHES MAXIMUM IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 1.0 KILOHERTZ NOMINAL SINGLE COMPONENT |
| Terminal Type and Quantity | 12 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 |
|---|---|
| 334450 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| CD672 | Magnetika Inc (USA) |
| Reference | Meaning |
|---|---|
| CD672 | 5/9 Secondary reference U.S. Government activity |
| W5287 | 5/9 Secondary reference Cen Electronics a Div of Chloride Power Electronics Inc |
NSN 5950-00-020-3853 is a Transformer,audio Frequency, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-020-3853 has 2 manufacturer part numbers on file: 334450 (Lockheed Martin Corporation Div Rms - Mitchel Field), CD672 (Magnetika Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5305-00-409-9901, 4730-01-341-7053. Verify interchangeability with system specifications before substitution.
Key specifications for 334450: Mounting Facility Quantity: 1 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Body Outside Diameter: 2.125 INCHES MAXIMUM IN; Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP. 10 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.