The Relay,electromagnetic, cataloged under National Stock Number 5945-01-180-7952, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Telephonics Corp. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5945-01-180-7952 |
| Primary Part Number | 487D303-1 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Telephonics Corp |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 28.0 DC |
| Fragility Factor | MODERATELY RUGGED |
| Mounting Facility Pattern | IN-LINE SINGLE MOUNTING FACILITY |
| Arc Quenching Method | AIR |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Main Contact Load Current Rating at Maximum Rated Voltage | 3.0 AMPERES DC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Unthreaded Mounting Hole Diameter | 0.156 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Coil Quantity | 1 |
| Cubic Measure | 14.726 CUBIC INCHES |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Terminal Type and Quantity | 8 WIRE HOOK ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Purpose for Which Designed | GENERAL |
| 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 |
|---|---|
| 487D303-1 PRIMARY | Telephonics Corp (USA) |
| BP1082 | Burke Products Inc (USA) |
| 487D303-1 | Triangle Tool Co (USA) |
| 487D303-1 | Projects Unlimited Inc (USA) |
| Reference | Meaning |
|---|---|
| 487D303-1 | 5/9 Secondary reference Burke Products Inc |
| 487D303-1 | 5/9 Secondary reference Cobra Industries Inc |
NSN 5945-01-180-7952 is a Relay,electromagnetic, manufactured by Telephonics Corp, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-180-7952 has 4 manufacturer part numbers on file: 487D303-1 (Telephonics Corp), BP1082 (Burke Products Inc), 487D303-1 (Triangle Tool Co), 487D303-1 (Projects Unlimited Inc).
Key specifications for 487D303-1: Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 2.144 INCHES MAXIMUM IN; Main Contact Maximum Voltage Rating in Volts: 28.0 DC; Fragility Factor: MODERATELY RUGGED. 17 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.