The Relay,electromagnetic, cataloged under National Stock Number 5945-01-049-5277, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-01-049-5277 |
| Primary Part Number | ARD420LR |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Coil Quantity | 1 |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 24.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ARD420LR PRIMARY | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| ARD420LR | 3/9 Design control — primary reference Westinghouse Electric Corp Control Business Unit |
| D76-5789-2-47 | 5/9 Secondary reference Challenger Electrical Equipment Corp |
NSN 5945-01-049-5277 is a Relay,electromagnetic, manufactured by Westinghouse Electric Corp, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-049-5277 has 1 manufacturer part number on file: ARD420LR (Westinghouse Electric Corp).
Key specifications for ARD420LR: Coil Quantity: 1; Winding Quantity: 1; Operating Voltage Rating and Type at Specified Temp: 24.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING. 3 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.