The Transformer,power, cataloged under National Stock Number 5950-00-072-8389, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Buffalo Power Electronics Center, Inc. Dba Buffalo Power Electronics. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-072-8389 |
| Primary Part Number | 426A633G01 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Buffalo Power Electronics Center, Inc. Dba Buffalo Power Electronics |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | OPEN |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 7.656 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | UNTHREADED HOLE(S) SINGLE GROUP |
| Maximum Transformer Power Rating | 750.0 VOLT-AMPERE SINGLE COMPONENT |
| Mounting Hole Diameter | 0.344 INCHES NOMINAL SINGLE GROUP IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Reliability Indicator | NOT ESTABLISHED |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 4.969 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Winding Operating Voltage | 450.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Winding Operating Voltage | 440.00 AC VOLTS MINIMUM AND 450.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE SECONDARY |
| Terminal Type and Quantity | 5 TAB, SOLDER LUG |
| 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 |
|---|---|
| 426A633G01 PRIMARY | Buffalo Power Electronics Center, Inc. Dba Buffalo Power Electronics (USA) |
| Reference | Meaning |
|---|---|
| S426A633G01 | 5/9 Secondary reference Westinghouse Electric Corp |
| S426A633G01 | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
| 15C5488LN3 | 5/9 Secondary reference Westinghouse Electric Corp |
NSN 5950-00-072-8389 is a Transformer,power, manufactured by Buffalo Power Electronics Center, Inc. Dba Buffalo Power Electronics, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-072-8389 has 1 manufacturer part number on file: 426A633G01 (Buffalo Power Electronics Center, Inc. Dba Buffalo Power Electronics).
Key specifications for 426A633G01: Overall Height: 6.031 INCHES NOMINAL IN; Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: OPEN; Center to Center Distance Between Mounting Facilities Parallel to Length: 7.656 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 13 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.