The Relay,electromagnetic, cataloged under National Stock Number 5945-00-404-8610, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Siemens Energy and Automation Inc Siemens Furnas Controls Div. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-00-404-8610 |
| Primary Part Number | 55BA1AF |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Siemens Energy and Automation Inc Siemens Furnas Controls Div |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 THREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 550.0 AC |
| Mounting Facility Pattern | IN-LINE SINGLE MOUNTING FACILITY |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.687 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Main Contact Load Current Rating at Maximum Rated Voltage | 12.0 AMPERES AC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Frequency in Hertz | 60.0 NOMINAL |
| Nominal Thread Size | 0.190 INCHES SINGLE MOUNTING FACILITY IN |
| Time Delay | 0.20 SECONDS MINIMUM AND 3.00 MINUTES MAXIMUM ADJUSTABLE OPERATE TIME |
| Coil Quantity | 1 |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 120.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING |
| Thread Class | 2B SINGLE MOUNTING FACILITY |
| Thread Quantity Per Inch | 24 SINGLE MOUNTING FACILITY |
| Terminal Type and Quantity | 6 PIN ALL FUNCTIONS |
| 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 |
| 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 |
|---|---|
| 55BA1AF PRIMARY | Siemens Energy and Automation Inc Siemens Furnas Controls Div (USA) |
| Reference | Meaning |
|---|---|
| 0584D24570 | 5/9 Secondary reference Rheem Mfg Co Air Conditioning Div |
NSN 5945-00-404-8610 is a Relay,electromagnetic, manufactured by Siemens Energy and Automation Inc Siemens Furnas Controls Div, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-404-8610 has 1 manufacturer part number on file: 55BA1AF (Siemens Energy and Automation Inc Siemens Furnas Controls Div).
Key specifications for 55BA1AF: Mounting Facility Type and Quantity: 2 THREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 2.562 INCHES NOMINAL IN; Main Contact Maximum Voltage Rating in Volts: 550.0 AC; Mounting Facility Pattern: IN-LINE SINGLE MOUNTING FACILITY. 17 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.