The Transformer,power, cataloged under National Stock Number 5950-01-111-9538, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Spellman High-Voltage Electronics Corporation Dba Spellman High-Voltage Electronics Corp. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-111-9538 |
| Primary Part Number | D3115 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Spellman High-Voltage Electronics Corporation Dba Spellman High-Voltage Electronics Corp |
| Status | ACTIVE |
| Transformer Winding Connection Type | DELTA-DELTA |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | HERMETICALLY SEALED WITH OIL |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 15.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Input-Output Phase Relationship | THREE PHASE TO THREE PHASE SINGLE COMPONENT |
| Mounting Method | THREADED HOLE(S) SINGLE GROUP |
| Maximum Transformer Power Rating | 150.0 WATTS SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Winding Shielding Method | INTERNAL SHIELD GROUNDED TO CORE AND MOUNTING SINGLE COMPONENT |
| Nominal Thread Size | 0.375 INCHES SINGLE GROUP IN |
| Winding Operating Current | 51.0 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 400.0 HERTZ NOMINAL SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 7.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Thread Quantity Per Inch | 16 SINGLE GROUP |
| Winding Operating Voltage | 440.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY |
| Winding Operating Voltage | 205.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY |
| Terminal Type and Quantity | 6 STANDOFF, 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 |
| Part Number | Manufacturer |
|---|---|
| D3115 PRIMARY | Spellman High-Voltage Electronics Corporation Dba Spellman High-Voltage Electronics Corp (USA) |
| 5328567 | Naval Sea Systems Command (USA) |
| SP-3P63 PRIMARY | Espey Mfg and Electronics Corp (USA) |
| 1204739 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| Reference | Meaning |
|---|---|
| SP-3P63 | 5/9 Secondary reference U.S. Government activity |
NSN 5950-01-111-9538 is a Transformer,power, manufactured by Spellman High-Voltage Electronics Corporation Dba Spellman High-Voltage Electronics Corp, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-111-9538 has 4 manufacturer part numbers on file: D3115 (Spellman High-Voltage Electronics Corporation Dba Spellman High-Voltage Electronics Corp), 5328567 (Naval Sea Systems Command), SP-3P63 (Espey Mfg and Electronics Corp), 1204739 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for D3115: Overall Height: 12.500 INCHES MAXIMUM IN; Transformer Winding Connection Type: DELTA-DELTA; Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED WITH OIL. 19 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.