The Transformer Assembly, cataloged under National Stock Number 5950-01-339-8204, 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 28 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-339-8204 |
| Primary Part Number | 12020-1 |
| Item Name | Transformer Assembly |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Sora Power Inc. Dba Sigma Division |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SECOND GROUP |
| Mounting Facility Quantity | 2 FIRST GROUP |
| Inclosure Type | FULLY INCLOSED |
| Winding Power Rating | 0.2 VOLTS-AMPERES THIRD COMPONENT FIRST SECONDARY |
| Winding Power Rating | 159.07 VOLTS-AMPERES FIRST COMPONENT FOURTH SECONDARY |
| Winding Power Rating | 160.2 VOLTS-AMPERES THIRD COMPONENT SECOND SECONDARY |
| Winding Power Rating | 18.03 VOLTS-AMPERES SECOND COMPONENT FOURTH SECONDARY |
| Winding Power Rating | 300.5 VOLTS-AMPERES SECOND COMPONENT FIRST SECONDARY |
| Winding Power Rating | 3535.0 VOLTS-AMPERES SECOND COMPONENT SECOND SECONDARY |
| Winding Power Rating | 5245.8 VOLTS-AMPERES SECOND COMPONENT THIRD SECONDARY |
| Winding Power Rating | 7.47 VOLTS-AMPERES THIRD COMPONENT THIRD SECONDARY |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE ALL COMPONENTS |
| Mounting Method | SLOT FIRST GROUP |
| Mounting Method | UNTHREADED HOLE(S) SECOND GROUP |
| Mounting Method | TAB THIRD GROUP |
| Body Width | 3.440 INCHES MAXIMUM IN |
| Mounting Hole Diameter | 0.500 INCHES NOMINAL SECOND GROUP IN |
| Winding Function and Quantity | 1 PRIMARY AND 3 SECONDARY THIRD COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 4 SECONDARY FIRST COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 4 SECONDARY SECOND COMPONENT |
| Winding Shielding Method | INTERNAL SHIELD BROUGHT OUT TO TERMINAL AND INTERNAL SHIELD GROUNDED TO CORE AND BROUGHT OUT TO TERMINAL THIRD COMPONENT |
| Winding Shielding Method | INTERNAL SHIELD BROUGHT OUT TO TERMINAL SECOND COMPONENT |
| Features Provided | W/RECTIFIER |
| Distance Between Mounting Facility Centers | 2.500 INCHES NOMINAL SECOND MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Distance Between Mounting Facility Centers | 4.500 INCHES NOMINAL FIRST MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Distance Between Mounting Facility Centers | 5.375 INCHES NOMINAL THIRD MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Maximum Operating Temp | 130.0 CELSIUS DEGC |
| Winding Operating Current | 0.01 AMPERES AC NOMINAL THIRD COMPONENT FIRST SECONDARY |
| 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 |
|---|---|
| 12020-1 | Sora Power Inc. Dba Sigma Division (USA) |
| Reference | Meaning |
|---|---|
| 984882-5B | 3/2 Design control — primary reference U.S. Government activity |
| 10132963 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 321-18050-05 | 5/2 Secondary reference U.S. Government activity |
NSN 5950-01-339-8204 is a Transformer Assembly, manufactured by Sora Power Inc. Dba Sigma Division, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-339-8204 has 1 manufacturer part number on file: 12020-1 (Sora Power Inc. Dba Sigma Division).
3 possible matches (shared part number, not a government interchangeability claim): 5310-01-468-1515, 8010-01-597-0320, 6530-01-700-9208. Verify interchangeability with system specifications before substitution.
Key specifications for 12020-1: Overall Height: 3.570 INCHES MAXIMUM IN; Mounting Facility Quantity: 2 SECOND GROUP; Mounting Facility Quantity: 2 FIRST GROUP; Inclosure Type: FULLY INCLOSED. 28 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.