The Relay,thermal, cataloged under National Stock Number 5945-00-652-1955, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ward Leonard Ct Llc. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-00-652-1955 |
| Primary Part Number | 104-490-5 |
| Item Name | Relay,thermal |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Ward Leonard Ct Llc |
| Status | ACTIVE |
| Contact Maximum Voltage Rating in Volts | 600.0 AC |
| Contact Maximum Current Rating in Amps | 100.0 AC |
| 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 |
|---|---|
| 104-490-5 | Ward Leonard Ct Llc (USA) |
| Reference | Meaning |
|---|---|
| 42557A | 5/9 Secondary reference Cooper Industries Inc Cooper Distribution Equipment Div |
| 21V4-100 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5945-00-652-1955 is a Relay,thermal, manufactured by Ward Leonard Ct Llc, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-652-1955 has 1 manufacturer part number on file: 104-490-5 (Ward Leonard Ct Llc).
Key specifications for 104-490-5: Overall Height: 2.562 INCHES NOMINAL IN; Contact Maximum Voltage Rating in Volts: 600.0 AC; Overall Length: 5.500 INCHES NOMINAL IN; Overall Width: 1.500 INCHES NOMINAL IN. 2 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.