The Relay,electromagnetic, cataloged under National Stock Number 5945-01-389-3732, 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 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-01-389-3732 |
| Primary Part Number | ST5M1243-4118 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 TERMINAL SINGLE MOUNTING FACILITY |
| Pile-Up Main Contact Form Arrangement | 2C |
| Main Contact Maximum Voltage Rating in Volts | 30.0 DC |
| Main Contact Load Current Rating at Maximum Rated Voltage | 8.0 AMPERES DC INDUCTIVE LOAD |
| Main Contact Load Current Rating at Maximum Rated Voltage | 10.0 AMPERES DC RESISTIVE LOAD |
| Main Contact Load Current Rating at Maximum Rated Voltage | 2.0 AMPERES DC LAMP LOAD |
| Main Contact Load Current Rating at Maximum Rated Voltage | 4.0 AMPERES DC MOTOR LOAD |
| Duty Type | CONTINUOUS |
| Time Delay | 20.00 SECONDS NOMINAL FIXED RELEASE TIME |
| Coil Quantity | 1 |
| Environmental Protection | HERMETIC |
| Terminal Type and Quantity | 8 PIN ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| 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 |
|---|---|
| ST5M1243-4118 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| TDA-821 | 5/9 Secondary reference Struthers-Dunn Inc |
| CTD210-4118 | 5/2 Secondary reference U.S. Government activity |
| 10132694 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5945-01-389-3732 is a Relay,electromagnetic, manufactured by The Boeing Company Div Defense, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-389-3732 has 1 manufacturer part number on file: ST5M1243-4118 (The Boeing Company Div Defense).
Key specifications for ST5M1243-4118: Mounting Facility Type and Quantity: 1 TERMINAL SINGLE MOUNTING FACILITY; Pile-Up Main Contact Form Arrangement: 2C; Main Contact Maximum Voltage Rating in Volts: 30.0 DC; Main Contact Load Current Rating at Maximum Rated Voltage: 8.0 AMPERES DC INDUCTIVE LOAD. 13 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.