The Transformer,radio Frequency, cataloged under National Stock Number 5950-00-189-1870, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Bae Systems Information and Electronic Systems Integration Inc.. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5950-00-189-1870 |
| Primary Part Number | 424S3R3 |
| Item Name | Transformer,radio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Bae Systems Information and Electronic Systems Integration Inc. |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | OPEN |
| Turn Quantity | 1420 SINGLE COMPONENT SINGLE SECONDARY |
| Turn Quantity | 189 SINGLE COMPONENT SINGLE PRIMARY |
| Mounting Method | THREADED HOLE(S) SINGLE GROUP |
| Inductance Rating | 26.80 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Inductance Rating | 392.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Adjustment Device Drive Type | SLOTTED SCREW SINGLE COMPONENT |
| Body Width | 1.188 INCHES NOMINAL IN |
| Body Height | 1.188 INCHES NOMINAL IN |
| Adjustment Method and Quantity | 1 ADJUSTABLE CORE SINGLE COMPONENT |
| Winding Conductor Size | 0.00397 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE PRIMARY IN |
| Coil Form Type | HOLLOW SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Distance Between Mounting Facility Centers | 1.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Nominal Thread Size | 0.112 INCHES SINGLE GROUP IN |
| Body Length | 1.312 INCHES NOMINAL IN |
| Rating Method | WINDING TURNS SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Thread Quantity Per Inch | 40 SINGLE GROUP |
| Terminal Type and Quantity | 4 TAB, SOLDER LUG |
| 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 |
| Part Number | Manufacturer |
|---|---|
| C424R3 | Bae Systems Information and Electronic Systems Integration Inc. (USA) |
| 424S3R3 PRIMARY | Bae Systems Information and Electronic Systems Integration Inc. (USA) |
| Reference | Meaning |
|---|---|
| 424S3R3 | 5/2 Secondary reference U.S. Government activity |
NSN 5950-00-189-1870 is a Transformer,radio Frequency, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-189-1870 has 2 manufacturer part numbers on file: C424R3 (Bae Systems Information and Electronic Systems Integration Inc.), 424S3R3 (Bae Systems Information and Electronic Systems Integration Inc.).
Key specifications for 424S3R3: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: OPEN; Turn Quantity: 1420 SINGLE COMPONENT SINGLE SECONDARY; Turn Quantity: 189 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.