The Transformer,radio Frequency, cataloged under National Stock Number 5950-00-189-9843, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is General Reliance Corp. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-189-9843 |
| Primary Part Number | SC-D-2556-GP4 |
| Item Name | Transformer,radio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | General Reliance Corp |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | OPEN |
| Body Outside Diameter | 0.250 INCHES NOMINAL IN |
| Turn Quantity | 53-1/2 SINGLE COMPONENT SINGLE PRIMARY |
| Mounting Method | THREADED HOLE(S) SINGLE GROUP |
| Winding Conductor Size | 0.01264 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE PRIMARY IN |
| Coil Form Type | SOLID SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY SINGLE COMPONENT |
| Distance Between Mounting Facility Centers | 1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Nominal Thread Size | 0.164 INCHES SINGLE GROUP IN |
| Body Length | 1.750 INCHES NOMINAL IN |
| Rating Method | WINDING TURNS SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Thread Quantity Per Inch | 32 SINGLE GROUP |
| Terminal Type and Quantity | 2 TAB, SOLDER LUG AND 1 WIRE LEAD |
| 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 |
|---|---|
| SC-D-2556-GP4 | General Reliance Corp (USA) |
| Reference | Meaning |
|---|---|
| SC-D-2556-GP4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5950-00-189-9843 is a Transformer,radio Frequency, manufactured by General Reliance Corp, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-189-9843 has 1 manufacturer part number on file: SC-D-2556-GP4 (General Reliance Corp).
Key specifications for SC-D-2556-GP4: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: OPEN; Body Outside Diameter: 0.250 INCHES NOMINAL IN; Turn Quantity: 53-1/2 SINGLE COMPONENT SINGLE PRIMARY. 16 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.