The Transformer,radio Frequency, cataloged under National Stock Number 5950-00-722-9790, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Viking Technologies, Ltd.. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-722-9790 |
| Primary Part Number | B19728ISSUEB |
| Item Name | Transformer,radio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Viking Technologies, Ltd. |
| Status | ACTIVE |
| Inclosure Type | OPEN |
| Body Outside Diameter | 0.625 INCHES NOMINAL IN |
| Turn Quantity | 59 SINGLE COMPONENT SINGLE SECONDARY |
| Turn Quantity | 89 SINGLE COMPONENT SINGLE PRIMARY |
| Mounting Method | THREADED BUSHING SINGLE GROUP |
| Inductance Rating | 160.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Inductance Rating | 19.20 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Adjustment Device Drive Type | SLOTTED SCREW SINGLE COMPONENT |
| Adjustment Method and Quantity | 1 ADJUSTABLE CORE SINGLE COMPONENT |
| Winding Conductor Size | 0.00631 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE PRIMARY IN |
| Winding Conductor Size | 0.01420 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE SECONDARY IN |
| Coil Form Type | HOLLOW SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Nominal Thread Size | 0.250 INCHES SINGLE GROUP IN |
| Body Length | 1.688 INCHES NOMINAL IN |
| Rating Method | ELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE SECONDARY |
| Rating Method | ELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 42.0 MEGAHERTZ MAXIMUM SINGLE COMPONENT |
| Thread Quantity Per Inch | 28 SINGLE GROUP |
| Terminal Type and Quantity | 5 TAB, SOLDER LUG |
| Thread Series Designator | UNF 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 |
| Part Number | Manufacturer |
|---|---|
| B19728ISSUEB | Viking Technologies, Ltd. (USA) |
| Reference | Meaning |
|---|---|
| B19728ISSUEB | 5/9 Secondary reference Dar Electronics Inc Dba National Radio Co |
| B19728ISSUEB | 3/9 Design control — primary reference U.S. Government activity |
NSN 5950-00-722-9790 is a Transformer,radio Frequency, manufactured by Viking Technologies, Ltd., classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-722-9790 has 1 manufacturer part number on file: B19728ISSUEB (Viking Technologies, Ltd.).
Key specifications for B19728ISSUEB: Inclosure Type: OPEN; Body Outside Diameter: 0.625 INCHES NOMINAL IN; Turn Quantity: 59 SINGLE COMPONENT SINGLE SECONDARY; Turn Quantity: 89 SINGLE COMPONENT SINGLE PRIMARY. 22 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.