The Relay,electromagnetic, cataloged under National Stock Number 5945-01-258-3951, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ross Engineering Corporation Dba Ross Engineering Corp. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5945-01-258-3951 |
| Primary Part Number | 800559 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Ross Engineering Corporation Dba Ross Engineering Corp |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 6 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Mounting Facility Pattern | RECTANGULAR SINGLE MOUNTING FACILITY |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.700 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Main Contact Load Current Rating at Maximum Rated Voltage | 120.0 AMPERES DC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Unthreaded Mounting Hole Diameter | 0.286 INCHES MINIMUM AND 0.295 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN |
| Frequency in Hertz | 50.0 MINIMUM AND 440.0 MAXIMUM |
| Auxiliary Contact Load Current Rating at Maximum Rated Voltage | 10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD |
| Auxiliary Contact Load Current Rating at Maximum Rated Voltage | 5.0 AMPERES AC AND 5.0 AMPERES DC INDUCTIVE LOAD |
| Auxiliary Contact Load Current Rating at Maximum Rated Voltage | 1.5 AMPERES AC AND 3.0 AMPERES DC LAMP LOAD |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 4.250 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| 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 |
|---|---|
| 800559 PRIMARY | Ross Engineering Corporation Dba Ross Engineering Corp (USA) |
| 2903483-1 | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 2903483-1 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5945-01-258-3951 is a Relay,electromagnetic, manufactured by Ross Engineering Corporation Dba Ross Engineering Corp, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-258-3951 has 2 manufacturer part numbers on file: 800559 (Ross Engineering Corporation Dba Ross Engineering Corp), 2903483-1 (Raytheon Company Dba Raytheon Co).
Key specifications for 800559: Mounting Facility Type and Quantity: 6 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 10.190 INCHES MAXIMUM IN; Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY; Center to Center Distance Between Mounting Facilities Parallel to Length: 2.700 INCHES NOMINAL SINGLE MOUNTING FACILITY IN. 11 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.