The Transformer,power, cataloged under National Stock Number 5950-01-380-9846, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Eldec Aerospace Corp. Government technical data includes 28 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-380-9846 |
| Primary Part Number | TF51-357-01 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Eldec Aerospace Corp |
| Status | ACTIVE |
| Transformer Winding Connection Type | DELTA-WYE |
| Mounting Facility Quantity | 2 SECOND GROUP |
| Mounting Facility Quantity | 2 FIRST GROUP |
| Inclosure Type | FULLY INCLOSED |
| Input-Output Phase Relationship | THREE PHASE TO THREE PHASE SINGLE COMPONENT |
| Mounting Method | BRACKET(S) AND UNTHREADED HOLE(S) AND SLOT ALL GROUPINGS |
| Body Width | 2.620 INCHES MAXIMUM IN |
| Mounting Hole Diameter | 0.109 INCHES NOMINAL SECOND GROUP IN |
| Mounting Hole Diameter | 0.218 INCHES MINIMUM AND 0.224 INCHES MAXIMUM FIRST GROUP IN |
| Mounting Hole Diameter | 0.218 INCHES MINIMUM AND 0.224 INCHES MAXIMUM SINGLE GROUP IN |
| Winding Function and Quantity | 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT |
| Winding Shielding Method | INTERNALLY SHIELDED SINGLE COMPONENT |
| Features Provided | COLOR CODED LEAD |
| Distance Between Mounting Facility Centers | 1.780 INCHES MINIMUM AND 1.820 INCHES MAXIMUM ALL MOUNTING FACILITIES ALL CENTER GROUPINGS IN |
| Maximum Operating Temp | 200.0 CELSIUS DEGC |
| Winding Operating Current | 1.5 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Winding Operating Current | 2.27 AMPERES AC NOMINAL SINGLE COMPONENT FIRST SECONDARY |
| Winding Operating Current | 50.0 MILLIAMPERES AC NOMINAL SINGLE COMPONENT THIRD SECONDARY |
| Winding Operating Current | 500.0 MILLIAMPERES AC NOMINAL SINGLE COMPONENT SECOND SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 400.0 HERTZ NOMINAL SINGLE COMPONENT |
| Winding Operating Voltage | 0.00 AC VOLTS NOMINAL AND 129.00 AC VOLTS NOMINAL AND 223.50 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY |
| Winding Operating Voltage | 0.00 AC VOLTS NOMINAL AND 17.35 AC VOLTS NOMINAL AND 30.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY |
| Winding Operating Voltage | 0.00 AC VOLTS NOMINAL AND 5.77 AC VOLTS NOMINAL AND 10.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY |
| Winding Operating Voltage | 215.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Terminal Type and Quantity | 15 WIRE LEAD |
| Hazardous Locations/environmental Protection | FUNGUS RESISTANT AND FLAME RESISTANT AND SALT SPRAY RESISTANT |
| Mounting Slot Width | 0.109 INCHES NOMINAL SECOND GROUP IN |
| 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 |
|---|---|
| TF51-357-01 PRIMARY | Eldec Aerospace Corp (USA) |
| 51-357-01 | Eldec Aerospace Corp (USA) |
NSN 5950-01-380-9846 is a Transformer,power, manufactured by Eldec Aerospace Corp, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-380-9846 has 2 manufacturer part numbers on file: TF51-357-01 (Eldec Aerospace Corp), 51-357-01 (Eldec Aerospace Corp).
Key specifications for TF51-357-01: Overall Height: 5.170 INCHES MAXIMUM IN; Transformer Winding Connection Type: DELTA-WYE; Mounting Facility Quantity: 2 SECOND GROUP; Mounting Facility Quantity: 2 FIRST GROUP. 28 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.