The Relay,electromagnetic, cataloged under National Stock Number 5945-00-909-7749, 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 Jennings Technology Company Llc Dba Jennings. Government technical data includes 23 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-00-909-7749 |
| Primary Part Number | RB4 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — No Item Name Available |
| Manufacturer | Jennings Technology Company Llc Dba Jennings |
| Status | ACTIVE |
| Winding DC Resistance Rating | 32.0 OHMS NOMINAL SINGLE WINDING |
| Features Provided | POLARIZED |
| Time Delay | 0.01 SECONDS MAXIMUM FIXED RELEASE TIME |
| Cubic Measure | 10.447 CUBIC INCHES |
| Winding Quantity | 1 |
| Terminal Type and Quantity | 14 TAB, SOLDER LUG ALL FUNCTIONS |
| Thread Class | 2A SINGLE MOUNTING FACILITY A |
| Material | GLASS CASE |
| Fragility Factor | MODERATELY RUGGED |
| Nonpile-Up Main Contact Arrangement | 4 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Coil Quantity | 1 |
| Thread Direction | RIGHT-HAND SINGLE MOUNTING FACILITY |
| Mounting Facility Type and Quantity | 1 THREADED BUSHING SINGLE MOUNTING FACILITY |
| Nominal Thread Size | 1.375 INCHES SINGLE MOUNTING FACILITY IN |
| Duty Type | CONTINUOUS |
| Operating Voltage Rating and Type at Specified Temp | 12.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Arc Quenching Method | AIR |
| Thread Series Designator | UNS SINGLE MOUNTING FACILITY |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Time Delay | 0.045 SECONDS MAXIMUM FIXED OPERATE TIME |
| Overall Diameter | 1.810 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 32 SINGLE MOUNTING FACILITY |
| Purpose for Which Designed | GENERAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5945-00-909-7749 is a Relay,electromagnetic, manufactured by Jennings Technology Company Llc Dba Jennings, classified under FSC 5945 (No Item Name Available). Status: active.
NSN 5945-00-909-7749 has 3 cross-referenced part numbers: RB4 (Jennings Technology Company Llc Dba Jennings), RB4 (Tdk Electronics Ag), RB4 (Epcos Ag Abt. Pr Roe K Pm).
There are 6 known substitutes for 5945-00-909-7749: 5999-00-280-3499, 3120-00-580-9479, 3110-01-395-5968 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for RB4: Winding DC Resistance Rating: 32.0 OHMS NOMINAL SINGLE WINDING; Features Provided: POLARIZED; Time Delay: 0.01 SECONDS MAXIMUM FIXED RELEASE TIME; Cubic Measure: 10.447 CUBIC INCHES. 24 total characteristics are documented in the Federal Logistics Information System.