The Transformer,power, cataloged under National Stock Number 5950-00-280-4603, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 23 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-280-4603 |
| Primary Part Number | P2739-2 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.688 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP |
| Body Width | 3.406 INCHES MINIMUM AND 3.469 INCHES MAXIMUM IN |
| Body Height | 4.062 INCHES MINIMUM AND 4.188 INCHES MAXIMUM IN |
| Mounting Hole Diameter | 0.201 INCHES NOMINAL SINGLE GROUP IN |
| Winding Function and Quantity | 1 PRIMARY AND 4 SECONDARY SINGLE COMPONENT |
| Body Length | 3.406 INCHES MINIMUM AND 3.469 INCHES MAXIMUM IN |
| Winding Operating Current | 2.5 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY |
| Winding Operating Current | 150.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY |
| Winding Operating Current | 10.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY |
| Winding Operating Current | 10.0 MILLIAMPERES 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 | 2.688 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Winding Operating Voltage | 6.30 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY |
| Winding Operating Voltage | 110.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Winding Operating Voltage | 350.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY |
| Winding Operating Voltage | 350.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY |
| Winding Operating Voltage | 550.00 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY |
| Terminal Type and Quantity | 12 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 |
|---|---|
| P2739-2 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| P2739REVCPCP2739-2 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| P2735REVEPCP2739-2 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| F8172 | Magnetika Inc (USA) |
| Reference | Meaning |
|---|---|
| 2409-1194935REVEPCP2739-2 | 3/2 Design control — primary reference U.S. Government activity |
| 2409-1194939REVCPCP2739-2 | 3/2 Design control — primary reference U.S. Government activity |
| F8172 | 5/9 Secondary reference U.S. Government activity |
NSN 5950-00-280-4603 is a Transformer,power, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-280-4603 has 4 manufacturer part numbers on file: P2739-2 (L3 Technologies, Inc. Div L3 Keo), P2739REVCPCP2739-2 (L3 Technologies, Inc. Div L3 Keo), P2735REVEPCP2739-2 (L3 Technologies, Inc. Div L3 Keo), F8172 (Magnetika Inc).
Key specifications for P2739-2: Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Center to Center Distance Between Mounting Facilities Parallel to Length: 2.688 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 23 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.