The Transformer,radio Frequency, cataloged under National Stock Number 5950-01-344-4638, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is American Trans-Coil Corp. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-344-4638 |
| Primary Part Number | 3109-67 |
| Item Name | Transformer,radio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | American Trans-Coil Corp |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Turn Quantity | 25 SINGLE COMPONENT SINGLE SECONDARY |
| Turn Quantity | 135 SINGLE COMPONENT SINGLE PRIMARY |
| Mounting Method | THREADED STUD(S) SINGLE GROUP |
| Body Height | 0.505 INCHES MAXIMUM IN |
| Winding Conductor Size | 0.00500 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE PRIMARY IN |
| Winding Conductor Size | 0.00500 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE SECONDARY IN |
| Coil Form Type | SOLID SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Distance Between Mounting Facility Centers | 0.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Nominal Thread Size | 0.112 INCHES SINGLE GROUP IN |
| Rating Method | WINDING TURNS SINGLE COMPONENT SINGLE PRIMARY |
| Rating Method | WINDING TURNS SINGLE COMPONENT SINGLE SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 500.0 KILOHERTZ NOMINAL SINGLE COMPONENT |
| Terminal Type and Quantity | 4 PIN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5950-01-344-4638 is a Transformer,radio Frequency, manufactured by American Trans-Coil Corp, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-344-4638 has 2 manufacturer part numbers on file: 3109-67 (American Trans-Coil Corp), 30-11587 (Magnetic Components Inc).
Key specifications for 3109-67: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Turn Quantity: 25 SINGLE COMPONENT SINGLE SECONDARY; Turn Quantity: 135 SINGLE COMPONENT SINGLE PRIMARY. 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.