The Transformer,power, cataloged under National Stock Number 5950-00-339-4279, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-339-4279 |
| Primary Part Number | 1JH12PC6E |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | OPEN |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.438 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | THREADED HOLE(S) SINGLE GROUP |
| Body Width | 2.625 INCHES NOMINAL IN |
| Body Height | 2.250 INCHES NOMINAL IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Nominal Thread Size | 0.190 INCHES SINGLE GROUP IN |
| Body Length | 2.750 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 60.0 HERTZ NOMINAL SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Thread Quantity Per Inch | 32 SINGLE GROUP |
| Winding Operating Voltage | 440.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Winding Operating Voltage | 0.50 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Terminal Type and Quantity | 2 TAB, SOLDER LUG AND 2 THREADED STUD |
| Thread Series Designator | UNF SINGLE GROUP |
| 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 |
|---|---|
| 1JH12PC6E | Westinghouse Electric Corp (USA) |
| 45J373PC5E | Westinghouse Electric Corp (USA) |
| S1303560 | Westinghouse Electric Corp (USA) |
| 37J370PC7E | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| S6307F3119225PC6E | 5/2 Secondary reference U.S. Government activity |
| 45J373PC5E | 5/9 Secondary reference Westinghouse Electric Corp Power Generation-Generator Div |
| S1303560 | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
| AM371S5501-287413PC5E | 5/2 Secondary reference U.S. Government activity |
| 37J370PC7E | 5/9 Secondary reference Westinghouse Electric Corp Power Generation-Generator Div |
| S1303560 | 3/9 Design control — primary reference Westinghouse Electric Corp Power Generation-Generator Div |
| 1JH12PC6E | 5/9 Secondary reference Westinghouse Electric Corp Power Generation-Generator Div |
| CV31S2200-322317PC7E | 5/2 Secondary reference U.S. Government activity |
NSN 5950-00-339-4279 is a Transformer,power, manufactured by Westinghouse Electric Corp, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-339-4279 has 4 manufacturer part numbers on file: 1JH12PC6E (Westinghouse Electric Corp), 45J373PC5E (Westinghouse Electric Corp), S1303560 (Westinghouse Electric Corp), 37J370PC7E (Westinghouse Electric Corp).
Key specifications for 1JH12PC6E: Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: OPEN; Center to Center Distance Between Mounting Facilities Parallel to Length: 2.438 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 18 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.