The Transformer,radio Frequency, cataloged under National Stock Number 5950-01-371-1295, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Payne Magnetics, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-371-1295 |
| Primary Part Number | K781-11 |
| Item Name | Transformer,radio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Payne Magnetics, Inc. |
| Status | ACTIVE |
| Mounting Facility Quantity | 1 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Body Outside Diameter | 1.900 INCHES MAXIMUM IN |
| Turn Quantity | 102 SINGLE COMPONENT THIRD SECONDARY |
| Turn Quantity | 104 SINGLE COMPONENT SINGLE PRIMARY |
| Turn Quantity | 161 SINGLE COMPONENT SECOND SECONDARY |
| Turn Quantity | 20 SINGLE COMPONENT FIRST SECONDARY |
| Turn Quantity | 48 SINGLE COMPONENT FOURTH SECONDARY |
| Mounting Method | THREADED HOLE(S) SINGLE GROUP |
| Winding Conductor Size | 0.01790 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE PRIMARY IN |
| Winding Conductor Size | 0.00708 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT FOURTH SECONDARY IN |
| Winding Conductor Size | 0.01003 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT THIRD SECONDARY IN |
| Winding Conductor Size | 0.01264 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT FIRST SECONDARY IN |
| Winding Conductor Size | 0.01264 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SECOND SECONDARY IN |
| Winding Function and Quantity | 1 PRIMARY AND 9 SECONDARY SINGLE COMPONENT |
| Nominal Thread Size | 0.138 INCHES SINGLE GROUP IN |
| Body Length | 0.800 INCHES MAXIMUM IN |
| Rating Method | WINDING TURNS SINGLE COMPONENT ALL SECONDARY |
| Rating Method | WINDING TURNS SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Terminal Type and Quantity | 21 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 |
NSN 5950-01-371-1295 is a Transformer,radio Frequency, manufactured by Payne Magnetics, Inc., classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-371-1295 has 2 manufacturer part numbers on file: PC76334-4 (Rockwell Collins, Inc. Dba Rc Displays Systems), K781-11 (Payne Magnetics, Inc.).
Key specifications for K781-11: Mounting Facility Quantity: 1 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Body Outside Diameter: 1.900 INCHES MAXIMUM IN; Turn Quantity: 102 SINGLE COMPONENT THIRD SECONDARY. 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.