The Transformer,current, cataloged under National Stock Number 5950-01-661-4566, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Schneider Electric Usa, Inc.. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-661-4566 |
| Primary Part Number | 3S12F |
| Item Name | Transformer,current |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Schneider Electric Usa, Inc. |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 ALL GROUPINGS |
| Inclosure Type | FULLY INCLOSED |
| Mounting Method | SLOT ALL GROUPINGS |
| Body Width | 6.50 INCHES NOMINAL IN |
| Mounting Hole Diameter | 0.516 INCHES NOMINAL ALL GROUPINGS IN |
| Distance Between Mounting Facility Centers | 2.94 INCHES NOMINAL SINGLE MOUNTING FACILITY FIRST CENTER GROUP IN |
| Maximum Operating Temp | 180.0 CELSIUS DEGC |
| Body Length | 10.50 INCHES NOMINAL IN |
| Frequency Rating | 60.0 HERTZ NOMINAL ALL COMPONENTS |
| Terminal Type and Quantity | 1 SLOTTED LUG |
| Mounting Slot Width | 0.75 INCHES NOMINAL ALL GROUPINGS IN |
| 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 |
|---|---|
| 3S12F PRIMARY | Schneider Electric Usa, Inc. (USA) |
NSN 5950-01-661-4566 is a Transformer,current, manufactured by Schneider Electric Usa, Inc., classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-661-4566 has 1 manufacturer part number on file: 3S12F (Schneider Electric Usa, Inc.).
Key specifications for 3S12F: Mounting Facility Quantity: 4 ALL GROUPINGS; Inclosure Type: FULLY INCLOSED; Mounting Method: SLOT ALL GROUPINGS; Body Width: 6.50 INCHES NOMINAL IN. 11 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.