The Relay,thermal, cataloged under National Stock Number 5945-00-254-6274, is classified within Federal Supply Class 5945 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Cooper Bussmann, Llc Dba Cooper Industries. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-00-254-6274 |
| Primary Part Number | B1503 |
| Item Name | Relay,thermal |
| FSC / FSG | 5945 / 59 — No Item Name Available |
| Manufacturer | Cooper Bussmann, Llc Dba Cooper Industries |
| Status | ACTIVE |
| Contact Maximum Voltage Rating in Volts | 115.0 AC |
| Heater Voltage Rating in Volts | 115.0 |
| Overall Diameter | 1.125 INCHES NOMINAL IN |
| Terminal Type and Quantity | 4 PIN |
| Mounting Facility Type and Quantity | 1 PLUG-IN |
| Contact Arrangement | SINGLE POLE, SINGLE THROW, NORMALLY OPEN |
| Contact Maximum Current Rating in Amps | 3.0 AC |
| Environmental Protection | HERMETIC |
| Delay Time in Seconds | 45.0 ADJUSTABLE OPERATE MINIMUM AND 60.0 ADJUSTABLE OPERATE MAXIMUM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5945-00-254-6274 is a Relay,thermal, manufactured by Cooper Bussmann, Llc Dba Cooper Industries, classified under FSC 5945 (No Item Name Available). Status: active.
NSN 5945-00-254-6274 has 3 cross-referenced part numbers: B1503 (Cooper Bussmann, Llc Dba Cooper Industries), 803-147 (Raytheon Company Div Corp), 803-147 (Raytheon Company Dba Raytheon Co).
There are 4 known substitutes for 5945-00-254-6274: 6680-00-828-4034, 3460-01-050-5294, 5355-01-327-1767 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for B1503: Contact Maximum Voltage Rating in Volts: 115.0 AC; Heater Voltage Rating in Volts: 115.0; Overall Diameter: 1.125 INCHES NOMINAL IN; Terminal Type and Quantity: 4 PIN. 10 total characteristics are documented in the Federal Logistics Information System.