The Reactor, cataloged under National Stock Number 5950-00-645-1202, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-645-1202 |
| Primary Part Number | 55B5578G1 |
| Item Name | Reactor |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | OPEN |
| Mounting Method | UNTHREADED HOLE(S) SINGLE GROUP |
| Inductance Rating | 2.50 HENRY NOMINAL SINGLE COMPONENT SINGLE WINDING |
| Body Width | 1.750 INCHES NOMINAL IN |
| Body Height | 1.875 INCHES NOMINAL IN |
| Mounting Hole Diameter | 0.188 INCHES NOMINAL SINGLE GROUP IN |
| Distance Between Mounting Facility Centers | 1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Body Length | 1.781 INCHES NOMINAL IN |
| Winding Operating Current | 45.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING |
| DC Resistance Rating in Ohms | 160.000 SINGLE COMPONENT SINGLE WINDING |
| Reliability Indicator | NOT ESTABLISHED |
| Winding Quantity | 1 SINGLE COMPONENT |
| Frequency Rating | 1.5 KILOHERTZ NOMINAL SINGLE COMPONENT |
| Terminal Type and Quantity | 2 TAB, SOLDER LUG |
| Inductance Type | FIXED |
| 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 |
|---|---|
| 55B5578G1 PRIMARY | Westinghouse Electric Corp (USA) |
| MP52943 PRIMARY | Westinghouse Electric Corp (USA) |
| L484048 PRIMARY | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| MP52943 | 5/9 Secondary reference Westinghouse Electric Corp Power Generation-Generator Div |
| 55B5578G1 | 5/9 Secondary reference Westinghouse Electric Corp Power Generation-Generator Div |
| L484048 | 5/9 Secondary reference Westinghouse Electric Corp Power Generation-Generator Div |
NSN 5950-00-645-1202 is a Reactor, manufactured by Westinghouse Electric Corp, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-645-1202 has 3 manufacturer part numbers on file: 55B5578G1 (Westinghouse Electric Corp), MP52943 (Westinghouse Electric Corp), L484048 (Westinghouse Electric Corp).
Key specifications for 55B5578G1: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: OPEN; Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP; Inductance Rating: 2.50 HENRY NOMINAL SINGLE COMPONENT SINGLE WINDING. 16 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.