The Transformer,power, cataloged under National Stock Number 5950-01-128-5430, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5950-01-128-5430 |
| Primary Part Number | 940139 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | HERMETICALLY SEALED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.938 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | THREADED STUD(S) SINGLE GROUP |
| Body Width | 4.750 INCHES NOMINAL IN |
| Body Height | 7.250 INCHES NOMINAL IN |
| Maximum Transformer Power Rating | 6.0 KILOVOLT-AMPERE SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Nominal Thread Size | 0.190 INCHES SINGLE GROUP IN |
| Body Length | 7.875 INCHES NOMINAL IN |
| Winding Operating Current | 30.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Winding Operating Current | 5.5 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 60.0 HERTZ NOMINAL SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 6.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Thread Quantity Per Inch | 32 SINGLE GROUP |
| Winding Operating Voltage | 2450.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Winding Operating Voltage | 418.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Terminal Type and Quantity | 6 TAB, SOLDER LUG |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) 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 |
NSN 5950-01-128-5430 is a Transformer,power, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-128-5430 has 2 manufacturer part numbers on file: 940139 (Raytheon Company), 940139 (Raytheon Company Dba Raytheon Co).
Key specifications for 940139: Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED; Center to Center Distance Between Mounting Facilities Parallel to Length: 3.938 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 21 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.