The Transformer,power Autotransforme, cataloged under National Stock Number 5950-00-973-9615, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is General Electric Company. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5950-00-973-9615 |
| Primary Part Number | 9T51Y139 |
| Item Name | Transformer,power Autotransforme |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Mounting Facility Quantity | 3 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Winding Power Rating | 1.5 KILOVOLT-AMPERES SINGLE COMPONENT SINGLE PRIMARY INPUT |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | FLANGE AND SLOT SINGLE GROUP |
| Body Width | 4.310 INCHES NOMINAL IN |
| Body Height | 8.880 INCHES NOMINAL IN |
| Winding Function and Quantity | 1 PRIMARY, VARIABLE AUTOTRANSFORMER TYPE SINGLE COMPONENT |
| Body Length | 4.720 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SINGLE COMPONENT |
| Winding Operating Voltage | 120.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY OUTPUT |
| Winding Operating Voltage | 240.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT |
| Terminal Type and Quantity | 3 WIRE LEAD |
| Mounting Slot Width | 0.297 INCHES NOMINAL AND 0.422 INCHES NOMINAL SINGLE GROUP 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 |
|---|---|
| 9T51Y139 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 9T51Y139 | 3/9 Design control — primary reference General Electric Co Specialty Transformer Dept |
NSN 5950-00-973-9615 is a Transformer,power Autotransforme, manufactured by General Electric Company, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-973-9615 has 1 manufacturer part number on file: 9T51Y139 (General Electric Company).
Key specifications for 9T51Y139: Mounting Facility Quantity: 3 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Winding Power Rating: 1.5 KILOVOLT-AMPERES SINGLE COMPONENT SINGLE PRIMARY INPUT; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 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.