The Transformer,current, cataloged under National Stock Number 5950-01-290-1256, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Pearson Electronics Inc. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5950-01-290-1256 |
| Primary Part Number | 4386 |
| Item Name | Transformer,current |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Pearson Electronics Inc |
| Status | CANCELLED |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | UNTHREADED HOLE(S) SINGLE GROUP |
| Body Width | 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN |
| Body Height | 4.355 INCHES MINIMUM AND 4.425 INCHES MAXIMUM IN |
| Mounting Hole Diameter | 0.175 INCHES NOMINAL SINGLE GROUP IN |
| Winding Function and Quantity | 1 SECONDARY SINGLE COMPONENT |
| Distance Between Mounting Facility Centers | 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Body Length | 3.985 INCHES MINIMUM AND 4.015 INCHES MAXIMUM IN |
| Winding Operating Current | 65.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 1.0 HERTZ MINIMUM AND 20.0 MEGAHERTZ MAXIMUM SINGLE COMPONENT |
| Terminal Type and Quantity | 2 WIRE LEAD |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4386 | Pearson Electronics Inc (USA) |
| Reference | Meaning |
|---|---|
| 824121 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5950-01-290-1256 is a Transformer,current, manufactured by Pearson Electronics Inc, classified under FSC 5950, Coils and Transformers. Status: cancelled.
NSN 5950-01-290-1256 has 1 manufacturer part number on file: 4386 (Pearson Electronics Inc).
Key specifications for 4386: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP. 14 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.
NSN 5950-01-290-1256 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.