The Transformer,power, cataloged under National Stock Number 5950-01-065-4549, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-065-4549 |
| Primary Part Number | 3149794 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 5.926 INCHES MINIMUM AND 5.966 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | THREADED HOLE(S) SINGLE GROUP |
| Body Width | 2.380 INCHES MAXIMUM IN |
| Body Height | 2.380 INCHES MAXIMUM IN |
| Maximum Transformer Power Rating | 1.5 KILOVOLT-AMPERE SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Winding Shielding Method | INTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT |
| Features Provided | W/OVERLOAD PROTECTION |
| Nominal Thread Size | 0.164 INCHES SINGLE GROUP IN |
| Maximum Operating Temp | 71.0 CELSIUS DEGC |
| Body Length | 6.550 INCHES MAXIMUM IN |
| Winding Operating Current | 100.0 MICROAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 25.0 KILOHERTZ NOMINAL SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 2.224 INCHES MINIMUM AND 2.264 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Winding Operating Voltage | 1.00 DC KILOVOLTS MINIMUM AND 2.00 DC KILOVOLTS MAXIMUM SINGLE COMPONENT SINGLE SECONDARY |
| Winding Operating Voltage | 13.79 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Terminal Type and Quantity | 2 CONNECTOR, RECEPTACLE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP |
| Hazardous Locations/environmental Protection | VIBRATION RESISTANT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3149794 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| C2750 | Spellman High-Voltage Electronics Corporation Dba Spellman High-Voltage Electronics Corp (USA) |
| PEI 7834 | Precision Electronics, Inc (USA) |
| Reference | Meaning |
|---|---|
| SP-25K2-PS | 5/9 Secondary reference Espey Mfg and Electronics Corp |
| 3149794 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 1054678-000 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms - Mitchel Field |
| 5950PL1254740 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5950-01-065-4549 is a Transformer,power, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-065-4549 has 3 manufacturer part numbers on file: 3149794 (Lockheed Martin Corporation Div Rms - Mitchel Field), C2750 (Spellman High-Voltage Electronics Corporation Dba Spellman High-Voltage Electronics Corp), PEI 7834 (Precision Electronics, Inc).
Key specifications for 3149794: Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Center to Center Distance Between Mounting Facilities Parallel to Length: 5.926 INCHES MINIMUM AND 5.966 INCHES MAXIMUM 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.
NSN 5950-01-065-4549 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.