The Transformer,power, cataloged under National Stock Number 5950-01-370-4856, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Hill Ross Controls Corp. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5950-01-370-4856 |
| Primary Part Number | 5477-0 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Hill Ross Controls Corp |
| Status | ACTIVE |
| Transformer Winding Connection Type | DELTA-DELTA AND DELTA-WYE |
| Inclosure Type | FULLY INCLOSED |
| Input-Output Phase Relationship | THREE PHASE TO THREE PHASE SINGLE COMPONENT |
| Body Width | 88.000 INCHES NOMINAL IN |
| Body Height | 100.000 INCHES NOMINAL IN |
| Maximum Transformer Power Rating | 4000.0 KILOVOLT-AMPERE SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT |
| Body Length | 118.000 INCHES NOMINAL IN |
| Winding Operating Current | 6.34 AMPERES AC NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 60.0 HERTZ NOMINAL SINGLE COMPONENT |
| Winding Operating Voltage | 600.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Winding Operating Voltage | 630.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY |
| Terminal Type and Quantity | 11 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 |
|---|---|
| 5477-0 | Hill Ross Controls Corp (USA) |
| Reference | Meaning |
|---|---|
| N-27947 | 3/9 Design control — primary reference Niagara Transformer Corp. |
NSN 5950-01-370-4856 is a Transformer,power, manufactured by Hill Ross Controls Corp, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-370-4856 has 1 manufacturer part number on file: 5477-0 (Hill Ross Controls Corp).
2 possible matches (shared part number, not a government interchangeability claim): 5925-01-459-5498, 3040-01-481-8068. Verify interchangeability with system specifications before substitution.
Key specifications for 5477-0: Transformer Winding Connection Type: DELTA-DELTA AND DELTA-WYE; Inclosure Type: FULLY INCLOSED; Input-Output Phase Relationship: THREE PHASE TO THREE PHASE SINGLE COMPONENT; Body Width: 88.000 INCHES NOMINAL IN. 14 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.