The Transformer,radio Frequency, cataloged under National Stock Number 5950-00-958-5557, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5950-00-958-5557 |
| Primary Part Number | 377A986G01 |
| Item Name | Transformer,radio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Inclosure Type | OPEN |
| Body Outside Diameter | 0.260 INCHES NOMINAL IN |
| Turn Quantity | 3-1/4 SINGLE COMPONENT SINGLE PRIMARY |
| Turn Quantity | 3-1/4 SINGLE COMPONENT SINGLE SECONDARY |
| Mounting Method | TERMINAL SINGLE GROUP |
| Inductance Rating | 0.26 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Inductance Rating | 0.26 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Winding Conductor Size | 0.02535 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE PRIMARY IN |
| Winding Conductor Size | 0.02535 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 |
| Body Length | 0.640 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 150.0 MEGAHERTZ MAXIMUM SINGLE COMPONENT |
| Terminal Type and Quantity | 4 TAB, SOLDER LUG |
| 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 |
|---|---|
| 377A986G01 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 377A986G01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5950-00-958-5557 is a Transformer,radio Frequency, manufactured by Westinghouse Electric Corp, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-958-5557 has 1 manufacturer part number on file: 377A986G01 (Westinghouse Electric Corp).
Key specifications for 377A986G01: Inclosure Type: OPEN; Body Outside Diameter: 0.260 INCHES NOMINAL IN; Turn Quantity: 3-1/4 SINGLE COMPONENT SINGLE PRIMARY; Turn Quantity: 3-1/4 SINGLE COMPONENT SINGLE SECONDARY. 15 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.