The Relay,electromagnetic, cataloged under National Stock Number 5945-00-780-8474, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Electronic Systems. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5945-00-780-8474 |
| Primary Part Number | 990C230H01 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Northrop Grumman Systems Corporation Dba Electronic Systems |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 THREADED BUSHING SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 1500.0 AC AND 1500.0 DC |
| Overall Diameter | 2.620 INCHES NOMINAL IN |
| Main Contact Load Current Rating at Maximum Rated Voltage | 20.0 AMPERES AC AND 20.0 AMPERES DC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Nominal Thread Size | 1.370 INCHES SINGLE MOUNTING FACILITY IN |
| Coil Quantity | 1 |
| Environmental Protection | HERMETIC |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 115.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Thread Class | 2A SINGLE MOUNTING FACILITY A |
| Thread Quantity Per Inch | 32 SINGLE MOUNTING FACILITY |
| Terminal Type and Quantity | 14 PIN ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 4 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Thread Series Designator | UNS SINGLE MOUNTING FACILITY |
| 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 |
|---|---|
| 990C230H01 | Northrop Grumman Systems Corporation Dba Electronic Systems (USA) |
| Reference | Meaning |
|---|---|
| RB4-115-N865 | 5/9 Secondary reference Jennings Technology Company Llc Dba Jennings |
| RB4-115N300 | 3/9 Design control — primary reference Jennings Technology Company Llc Dba Jennings |
NSN 5945-00-780-8474 is a Relay,electromagnetic, manufactured by Northrop Grumman Systems Corporation Dba Electronic Systems, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-780-8474 has 1 manufacturer part number on file: 990C230H01 (Northrop Grumman Systems Corporation Dba Electronic Systems).
Key specifications for 990C230H01: Mounting Facility Type and Quantity: 1 THREADED BUSHING SINGLE MOUNTING FACILITY; Main Contact Maximum Voltage Rating in Volts: 1500.0 AC AND 1500.0 DC; Overall Diameter: 2.620 INCHES NOMINAL IN; Main Contact Load Current Rating at Maximum Rated Voltage: 20.0 AMPERES AC AND 20.0 AMPERES DC RESISTIVE LOAD. 15 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.