The Transformer Assembly, cataloged under National Stock Number 5950-01-254-2151, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Sora Power Inc. Dba Sigma Division. Government technical data includes 30 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-254-2151 |
| Primary Part Number | 12020 |
| Item Name | Transformer Assembly |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Sora Power Inc. Dba Sigma Division |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 ALL GROUPINGS |
| Inclosure Type | FULLY INCLOSED |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE ALL COMPONENTS |
| Mounting Method | THREADED HOLE(S) SECOND GROUP |
| Mounting Method | UNTHREADED HOLE(S) FIRST GROUP |
| Mounting Method | SLOT THIRD GROUP |
| Body Width | 2.812 INCHES NOMINAL IN |
| Body Height | 3.570 INCHES NOMINAL IN |
| Mounting Hole Diameter | 0.187 INCHES NOMINAL FIRST GROUP IN |
| Winding Function and Quantity | 1 PRIMARY AND 3 SECONDARY THIRD COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 4 SECONDARY SECOND COMPONENT |
| Winding Function and Quantity | 2 PRIMARY AND 3 SECONDARY FIRST COMPONENT |
| Winding Shielding Method | INTERNAL SHIELD BROUGHT OUT TO TERMINAL SECOND COMPONENT |
| Winding Shielding Method | INTERNAL SHIELD BROUGHT OUT TO TERMINAL THIRD COMPONENT |
| Distance Between Mounting Facility Centers | 4.218 INCHES NOMINAL SECOND MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Distance Between Mounting Facility Centers | 4.500 INCHES NOMINAL THIRD MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Distance Between Mounting Facility Centers | 5.375 INCHES NOMINAL FIRST MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Nominal Thread Size | 0.164 INCHES SECOND GROUP IN |
| Body Length | 4.750 INCHES NOMINAL IN |
| Winding Operating Current | 1.2 AMPERES AC MAXIMUM THIRD COMPONENT SECOND SECONDARY |
| Winding Operating Current | 10.0 MILLIAMPERES AC MAXIMUM THIRD COMPONENT FIRST SECONDARY |
| Winding Operating Current | 3.0 AMPERES AC MAXIMUM SECOND COMPONENT FOURTH SECONDARY |
| Winding Operating Current | 30.0 MILLIAMPERES AC MAXIMUM FIRST COMPONENT FOURTH SECONDARY |
| Winding Operating Current | 35.0 MILLIAMPERES AC MAXIMUM SECOND COMPONENT THIRD SECONDARY |
| Winding Operating Current | 35.0 MILLIAMPERES AC MAXIMUM THIRD COMPONENT THIRD SECONDARY |
| Winding Operating Current | 50.0 MILLIAMPERES AC MAXIMUM SECOND COMPONENT FIRST SECONDARY |
| Winding Operating Current | 50.0 MILLIAMPERES AC MAXIMUM SECOND COMPONENT SECOND SECONDARY |
| Rating Method | ELECTRICAL ALL COMPONENTS ALL PRIMARY |
| Rating Method | ELECTRICAL ALL COMPONENTS ALL SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| 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 |
|---|---|
| 12020 | Sora Power Inc. Dba Sigma Division (USA) |
| Reference | Meaning |
|---|---|
| 984882-4B | 3/2 Design control — primary reference U.S. Government activity |
| 321-18050-03 | 5/2 Secondary reference U.S. Government activity |
NSN 5950-01-254-2151 is a Transformer Assembly, manufactured by Sora Power Inc. Dba Sigma Division, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-254-2151 has 1 manufacturer part number on file: 12020 (Sora Power Inc. Dba Sigma Division).
Key specifications for 12020: Mounting Facility Quantity: 2 ALL GROUPINGS; Inclosure Type: FULLY INCLOSED; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE ALL COMPONENTS; Mounting Method: THREADED HOLE(S) SECOND GROUP. 30 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.