The Relay,electromagnetic, cataloged under National Stock Number 5945-01-192-7989, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 24 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-01-192-7989 |
| Primary Part Number | 75B790057-101 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 28.0 DC |
| Fragility Factor | MODERATELY RUGGED |
| Mounting Facility Pattern | RECTANGULAR SINGLE MOUNTING FACILITY |
| Arc Quenching Method | AIR |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.625 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Main Contact Load Current Rating at Maximum Rated Voltage | 100.0 AMPERES DC RESISTIVE LOAD |
| Main Contact Load Current Rating at Maximum Rated Voltage | 100.0 AMPERES DC INDUCTIVE LOAD |
| Main Contact Load Current Rating at Maximum Rated Voltage | 60.0 AMPERES DC MOTOR LOAD |
| Duty Type | CONTINUOUS |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Unthreaded Mounting Hole Diameter | 0.196 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Features Provided | POLARIZED |
| Nominal Operating Current Rating and Type | 175.0 MILLIAMPERES DC SINGLE WINDING |
| Time Delay | 0.025 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME |
| Coil Quantity | 1 |
| Environmental Protection | HERMETIC |
| Cubic Measure | 16.205 CUBIC INCHES |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.260 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Terminal Type and Quantity | 5 THREADED STUD ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 1 POLE, DOUBLE THROW, DOUBLE BREAK/DOUBLE MAKE, PERMANENT JUMPER, ONE POSITION MOMENTARY |
| Purpose for Which Designed | GENERAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SDH128A | Te Connectivity Corporation (USA) |
| 75B790057-101 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| N-417E | C/1 Advisory reference — outside the item-of-supply concept Te Connectivity Corporation |
| SDH128A | 5/9 Secondary reference Ibex Aerospace Technologies Inc |
NSN 5945-01-192-7989 is a Relay,electromagnetic, manufactured by The Boeing Company Div Defense, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-192-7989 has 2 manufacturer part numbers on file: SDH128A (Te Connectivity Corporation), 75B790057-101 (The Boeing Company Div Defense).
Key specifications for 75B790057-101: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 2.560 INCHES MAXIMUM IN; Main Contact Maximum Voltage Rating in Volts: 28.0 DC; Fragility Factor: MODERATELY RUGGED. 24 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.
NSN 5945-01-192-7989 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.