The Relay,solid State, cataloged under National Stock Number 5945-01-685-9858, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Siemens Industry Inc Div Corporate Headquarters. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-01-685-9858 |
| Primary Part Number | 3RB31-23-4QB0 |
| Item Name | Relay,solid State |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Siemens Industry Inc Div Corporate Headquarters |
| Status | ACTIVE |
| Features Provided | SHOCK RESISTANT |
| Operating Temp Range | -25.0 TO 60.0 CELSIUS DEGC |
| Current Rating | UNABLE TO DECODE |
| Terminal Type and Quantity | 3 PIN AND 9 SCREW |
| Voltage Rating | UNABLE TO DECODE |
| 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 |
|---|---|
| 3RB31-23-4QB0 PRIMARY | Siemens Industry Inc Div Corporate Headquarters (USA) |
| 3RB31-23-4QB0 | Billows Electric Supply Company, Inc. (USA) |
NSN 5945-01-685-9858 is a Relay,solid State, manufactured by Siemens Industry Inc Div Corporate Headquarters, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-685-9858 has 2 manufacturer part numbers on file: 3RB31-23-4QB0 (Siemens Industry Inc Div Corporate Headquarters), 3RB31-23-4QB0 (Billows Electric Supply Company, Inc.).
Key specifications for 3RB31-23-4QB0: Overall Length: 87.3 MILLIMETERS NOMINAL MM; Overall Width: 107.0 MILLIMETERS NOMINAL MM; Features Provided: SHOCK RESISTANT; Special Features: THERMAL CURRENT 25A; PROTECTION AGAINST ELECTRICAL SHOCK: FINGER SAFE; ELECTROSTATIC DISCHARGE ACC. TO IEC 61000-4-2=6 KV CONTACT DISCHARGE / 8 KV AIIR DISCHARGE A. 5 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.