The Relay,electromagnetic, cataloged under National Stock Number 5945-01-016-0559, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Cooper Wheelock, Inc.. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-01-016-0559 |
| Primary Part Number | 3421-1A-6 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Cooper Wheelock, Inc. |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 250.0 AC |
| Main Contact Load Current Rating at Maximum Rated Voltage | 500.0 MILLIAMPERES AC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Winding DC Resistance Rating | 240.0 OHMS NOMINAL SINGLE WINDING |
| Time Delay | 0.0005 SECONDS MAXIMUM FIXED OPERATE TIME |
| Coil Quantity | 1 |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 6.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Terminal Type and Quantity | 4 PIN ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION |
| 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 |
|---|---|
| 3421-1A-6 PRIMARY | Cooper Wheelock, Inc. (USA) |
NSN 5945-01-016-0559 is a Relay,electromagnetic, manufactured by Cooper Wheelock, Inc., classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-016-0559 has 1 manufacturer part number on file: 3421-1A-6 (Cooper Wheelock, Inc.).
Key specifications for 3421-1A-6: Mounting Facility Type and Quantity: 1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY; Overall Height: 0.281 INCHES NOMINAL IN; Main Contact Maximum Voltage Rating in Volts: 250.0 AC; Main Contact Load Current Rating at Maximum Rated Voltage: 500.0 MILLIAMPERES AC RESISTIVE LOAD. 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.