The Relay,electromagnetic, cataloged under National Stock Number 5945-00-682-8994, 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 22 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-00-682-8994 |
| Primary Part Number | 1856998 |
| 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 | 250.0 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 | 6.000 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Main Contact Load Current Rating at Maximum Rated Voltage | 30.0 AMPERES DC INDUCTIVE LOAD |
| Duty Type | CONTINUOUS |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Unthreaded Mounting Hole Diameter | 0.221 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Winding DC Resistance Rating | 110.0 OHMS NOMINAL SINGLE WINDING |
| Center to Center Distance Between Mounting Facilities Parallel to Height | 3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Nominal Operating Current Rating and Type | 105.0 MILLIAMPERES AC SINGLE WINDING |
| Time Delay | 0.02 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME |
| Coil Quantity | 1 |
| Environmental Protection | HERMETIC |
| Cubic Measure | 129.937 CUBIC INCHES |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 115.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING |
| Terminal Type and Quantity | 14 SCREW ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 4 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION |
| Purpose for Which Designed | GENERAL |
| 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 |
|---|---|
| 1856998 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 1856988 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| K46535 | Ward Leonard Ct Llc (USA) |
| Reference | Meaning |
|---|---|
| 1002420 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
| 1856998REVH | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5945-00-682-8994 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 5945-00-682-8994 has 3 manufacturer part numbers on file: 1856998 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 1856988 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), K46535 (Ward Leonard Ct Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5331-01-221-7705, 6625-01-557-1159. Verify interchangeability with system specifications before substitution.
Key specifications for 1856998: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 3.625 INCHES MAXIMUM IN; Main Contact Maximum Voltage Rating in Volts: 250.0 DC; Fragility Factor: MODERATELY RUGGED. 22 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.