The Relay,electromagnetic, cataloged under National Stock Number 5945-00-252-4181, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Elettronica Spa. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-00-252-4181 |
| Primary Part Number | 640-363-263 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Elettronica Spa |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 115.0 AC AND 30.0 DC |
| Main Contact Load Current Rating at Maximum Rated Voltage | 1.0 AMPERES AC AND 2.0 AMPERES DC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Winding DC Resistance Rating | 150.0 OHMS NOMINAL SINGLE WINDING |
| Coil Quantity | 1 |
| Environmental Protection | HERMETIC |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 12.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Terminal Type and Quantity | 8 PIN ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| 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 |
|---|---|
| 640-363-263 | Elettronica Spa (ITA) |
| 640-363-263 | Elettronica Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| 2K2A112 | 3/9 Design control — primary reference Hi-G Co Inc Sub of Nytronics Inc |
NSN 5945-00-252-4181 is a Relay,electromagnetic, manufactured by Elettronica Spa, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-252-4181 has 2 manufacturer part numbers on file: 640-363-263 (Elettronica Spa), 640-363-263 (Elettronica Gmbh).
1 possible match (shared part number, not a government interchangeability claim): 5945-01-034-2959. Verify interchangeability with system specifications before substitution.
Key specifications for 640-363-263: Mounting Facility Type and Quantity: 1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY; Overall Height: 0.400 INCHES NOMINAL IN; Main Contact Maximum Voltage Rating in Volts: 115.0 AC AND 30.0 DC; Main Contact Load Current Rating at Maximum Rated Voltage: 1.0 AMPERES AC AND 2.0 AMPERES DC 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.