The Relay,electromagnetic, cataloged under National Stock Number 5945-01-166-9787, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 18 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5945-01-166-9787 |
| Primary Part Number | 2939222-1 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 45000.0 DC |
| Mounting Facility Pattern | RECTANGULAR SINGLE MOUNTING FACILITY |
| Arc Quenching Method | INERT GAS |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 5.110 INCHES MINIMUM AND 5.140 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN |
| Main Contact Load Current Rating at Maximum Rated Voltage | 3000.0 AMPERES DC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Unthreaded Mounting Hole Diameter | 0.281 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Winding DC Resistance Rating | 390.0 OHMS NOMINAL SINGLE WINDING |
| Time Delay | 0.05 SECONDS MAXIMUM FIXED RELEASE TIME |
| Time Delay | 0.03 SECONDS MAXIMUM FIXED OPERATE TIME |
| Coil Quantity | 1 |
| Environmental Protection | HUMIDITY RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 100.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 4.610 INCHES MINIMUM AND 4.640 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN |
| Terminal Type and Quantity | 4 PIN ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION |
| 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 |
|---|---|
| 2939222-1 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| PR-55G | 5/9 Secondary reference Omega Laboratories Inc |
| D02566 | 5/9 Secondary reference Jennings Technology Company Llc Dba Jennings |
| DD2566 | 5/9 Secondary reference Jennings Technology Company Llc Dba Jennings |
NSN 5945-01-166-9787 is a Relay,electromagnetic, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-166-9787 has 1 manufacturer part number on file: 2939222-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2939222-1: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 13.435 INCHES MINIMUM AND 13.685 INCHES MAXIMUM IN; Main Contact Maximum Voltage Rating in Volts: 45000.0 DC; Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY. 18 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.