The Transformer,power, cataloged under National Stock Number 5950-00-589-0781, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Northrop Grumman Support Services Corp. Government technical data includes 26 specifications, cited from the U.S. Government catalog. The record lists 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5950-00-589-0781 |
| Primary Part Number | 139C587H01 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 1.795 INCHES MINIMUM AND 1.805 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Winding Power Rating | 1.22 VOLTS-AMPERES SINGLE COMPONENT SECOND SECONDARY |
| Winding Power Rating | 24.46 VOLTS-AMPERES SINGLE COMPONENT THIRD SECONDARY |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | THREADED HOLE(S) SINGLE GROUP |
| Body Width | 1.960 INCHES MAXIMUM IN |
| Body Height | 3.750 INCHES MAXIMUM IN |
| Winding Function and Quantity | 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT |
| Winding Shielding Method | CORE GROUNDED SINGLE COMPONENT |
| Features Provided | COLOR CODED TERMINAL |
| Nominal Thread Size | 0.164 INCHES SINGLE GROUP IN |
| Body Length | 2.440 INCHES MAXIMUM IN |
| Winding Operating Current | 20.0 MILLIAMPERES AC NOMINAL SINGLE COMPONENT SECOND SECONDARY |
| Winding Operating Current | 3.5 AMPERES AC NOMINAL SINGLE COMPONENT THIRD SECONDARY |
| Winding Operating Current | 450.0 MILLIAMPERES AC NOMINAL SINGLE COMPONENT FIRST SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 400.0 HERTZ NOMINAL SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.395 INCHES MINIMUM AND 1.405 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Winding Operating Voltage | 6.98 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY |
| Winding Operating Voltage | 61.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY |
| Winding Operating Voltage | 62.80 AC VOLTS NOMINAL AND 3.46 AC KILOVOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY |
| Winding Operating Voltage | 99.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Terminal Type and Quantity | 3 THREADED STUD AND 10 TURRET |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| L724725G01 | Magnatronix Corporation (USA) |
| C14495 | Electronic Transformer Corp Div Electronic Transformer Corporation (USA) |
| PEI 7085 | Precision Electronics, Inc (USA) |
| 450-1020-000 | Magnatronix Corporation (USA) |
| 139C587H01 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| 139C587H01 | Magnetic Design Labs Inc (USA) |
| Reference | Meaning |
|---|---|
| 139C587H01 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5950-00-589-0781 is a Transformer,power, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-589-0781 has 6 manufacturer part numbers on file: L724725G01 (Magnatronix Corporation), C14495 (Electronic Transformer Corp Div Electronic Transformer Corporation), PEI 7085 (Precision Electronics, Inc), 450-1020-000 (Magnatronix Corporation), 139C587H01 (Northrop Grumman Support Services Corp) and 1 more.
Key specifications for 139C587H01: Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Center to Center Distance Between Mounting Facilities Parallel to Length: 1.795 INCHES MINIMUM AND 1.805 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Winding Power Rating: 1.22 VOLTS-AMPERES SINGLE COMPONENT SECOND SECONDARY. 26 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 5950-00-589-0781 has DEMIL Code Q. 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.