The Coil,radio Frequency, cataloged under National Stock Number 5950-01-207-3570, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Department of the Army Hq United States Army Communications Research and Development Command. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-207-3570 |
| Primary Part Number | B4028539 |
| Item Name | Coil,radio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Department of the Army Hq United States Army Communications Research and Development Command |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Quality Factor | 50 MINIMUM SINGLE COMPONENT SINGLE WINDING |
| Mounting Method | TERMINAL SINGLE GROUP |
| Adjustment Device Drive Type | SLOTTED SCREW SINGLE COMPONENT |
| Body Width | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Body Height | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Adjustment Method and Quantity | 1 ADJUSTABLE CORE SINGLE COMPONENT |
| Coil Form Type | HOLLOW SINGLE COMPONENT |
| Body Length | 0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN |
| Rating Method | ELECTRICAL SINGLE COMPONENT SINGLE WINDING |
| Reliability Indicator | NOT ESTABLISHEDNOT ESTABLISHED |
| Core Construction | S0LID SINGLE COMPONENT |
| Terminal Type and Quantity | 2 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 |
|---|---|
| B4028539 PRIMARY | Department of the Army Hq United States Army Communications Research and Development Command (USA) |
| L23-01R25 | Tecal Manufacturing, L.l.c (USA) |
| L23-01R25 | Department of the Army Hq United States Army Communications Research and Development Command (USA) |
| Reference | Meaning |
|---|---|
| B4028539 | 5/2 Secondary reference U.S. Government activity |
NSN 5950-01-207-3570 is a Coil,radio Frequency, manufactured by Department of the Army Hq United States Army Communications Research and Development Command, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-207-3570 has 3 manufacturer part numbers on file: B4028539 (Department of the Army Hq United States Army Communications Research and Development Command), L23-01R25 (Tecal Manufacturing, L.l.c), L23-01R25 (Department of the Army Hq United States Army Communications Research and Development Command).
Key specifications for B4028539: Inclosure Type: FULLY INCLOSED; Quality Factor: 50 MINIMUM SINGLE COMPONENT SINGLE WINDING; Mounting Method: TERMINAL SINGLE GROUP; Adjustment Device Drive Type: SLOTTED SCREW SINGLE COMPONENT. 13 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.