The Relay,electromagnetic, cataloged under National Stock Number 5945-00-558-7776, 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 Square D Co Pinellas Plant. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-00-558-7776 |
| Primary Part Number | 21690-1 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — No Item Name Available |
| Manufacturer | Square D Co Pinellas Plant |
| Status | ACTIVE |
| Thread Class | 2B SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 28.0 DC |
| Mounting Facility Pattern | RECTANGULAR SINGLE MOUNTING FACILITY |
| Fragility Factor | MODERATELY RUGGED |
| Main Contact Load Current Rating at Maximum Rated Voltage | 10.0 AMPERES DC RESISTIVE LOAD |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Arc Quenching Method | AIR |
| Operating Voltage Rating and Type at Specified Temp | 24.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Nonpile-Up Main Contact Arrangement | 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION AND 1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY |
| Coil Quantity | 1 |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.843 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Winding Quantity | 1 |
| Purpose for Which Designed | GENERAL |
| Cubic Measure | 28.275 CUBIC INCHES |
| Duty Type | CONTINUOUS |
| Thread Quantity Per Inch | 32 SINGLE MOUNTING FACILITY |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Thread Direction | RIGHT-HAND SINGLE MOUNTING FACILITY |
| Terminal Type and Quantity | 6 SCREW ALL FUNCTIONS |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.312 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Nominal Thread Size | 0.164 INCHES SINGLE MOUNTING FACILITY IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5945-00-558-7776 is a Relay,electromagnetic, manufactured by Square D Co Pinellas Plant, classified under FSC 5945 (No Item Name Available). Status: active.
NSN 5945-00-558-7776 has 2 cross-referenced part numbers: 21690-1 (Square D Co Pinellas Plant), 21690-1 (Square D Co Electromagnetic Industries Div).
There are 2 known substitutes for 5945-00-558-7776: 5945-00-919-7749, 5895-01-657-4368. Verify interchangeability with system specifications before substitution.
Key specifications for 21690-1: Thread Class: 2B SINGLE MOUNTING FACILITY; Main Contact Maximum Voltage Rating in Volts: 28.0 DC; Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY; Fragility Factor: MODERATELY RUGGED. 25 total characteristics are documented in the Federal Logistics Information System.