The Relay,electromagnetic, cataloged under National Stock Number 5945-01-272-1398, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Western Switches and Control Inc. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-01-272-1398 |
| Primary Part Number | MK1P-UA-AC120 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Western Switches and Control Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 500.0 AC AND 250.0 DC |
| Mounting Facility Pattern | CIRUCLAR SINGLE MOUNTING FACILITY |
| Precious Material | SILVER |
| Main Contact Load Current Rating at Maximum Rated Voltage | 5.0 AMPERES AC AND 5.0 AMPERES DC RESISTIVE LOAD |
| Main Contact Load Current Rating at Maximum Rated Voltage | 5.0 AMPERES AC AND 5.0 AMPERES DC INDUCTIVE LOAD |
| Material | SILVER CONTACT |
| Terminal Type and Quantity | 1 STANDARD TUBE BASE ENERGIZING ELEMENT AND CONTACTS |
| 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 |
|---|---|
| MK1P-UA-AC120 PRIMARY | Western Switches and Control Inc (USA) |
| 925004 PRIMARY | Hotsy Corp the (USA) |
NSN 5945-01-272-1398 is a Relay,electromagnetic, manufactured by Western Switches and Control Inc, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-272-1398 has 2 manufacturer part numbers on file: MK1P-UA-AC120 (Western Switches and Control Inc), 925004 (Hotsy Corp the).
Key specifications for MK1P-UA-AC120: Mounting Facility Type and Quantity: 1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY; Main Contact Maximum Voltage Rating in Volts: 500.0 AC AND 250.0 DC; Mounting Facility Pattern: CIRUCLAR SINGLE MOUNTING FACILITY; Precious Material: SILVER. 8 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.