The Relay,electromagnetic, cataloged under National Stock Number 5945-01-340-9893, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Kato Engineering Inc.. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-01-340-9893 |
| Primary Part Number | 505-41330-51 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Kato Engineering Inc. |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 PLUG-IN TERMINAL(S) FIRST MOUNTING FACILITY |
| Mounting Facility Type and Quantity | 3 SLOTTED HOLE SECOND MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 28.0 DC |
| Fragility Factor | MODERATELY RUGGED |
| Mounting Facility Pattern | TRIANGLE SECOND MOUNTING FACILITY |
| Arc Quenching Method | AIR |
| Main Contact Load Current Rating at Maximum Rated Voltage | 10.0 AMPERES DC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle | 1.062 INCHES MINIMUM AND 1.078 INCHES MAXIMUM SECOND MOUNTING FACILITY IN |
| Coil Quantity | 1 |
| Environmental Protection | DUSTPROOF |
| 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 | 0.500 INCHES NOMINAL SECOND MOUNTING FACILITY IN |
| Terminal Type and Quantity | 11 PIN ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 3 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Purpose for Which Designed | GENERAL |
| Mounting Slot Width | 0.133 INCHES NOMINAL SECOND MOUNTING FACILITY IN |
| 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 |
|---|---|
| 099-00142-01 ITEM 22 | Kato Engineering Inc. (USA) |
| YC-D4A-300M | Leach International Corp Div Leach International Corporation (USA) |
| 505-41330-51 PRIMARY | Kato Engineering Inc. (USA) |
| Reference | Meaning |
|---|---|
| YC-D4A-002 | 5/9 Secondary reference Leach International Corp Div Leach International Corporation |
NSN 5945-01-340-9893 is a Relay,electromagnetic, manufactured by Kato Engineering Inc., classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-340-9893 has 3 manufacturer part numbers on file: 099-00142-01 ITEM 22 (Kato Engineering Inc.), YC-D4A-300M (Leach International Corp Div Leach International Corporation), 505-41330-51 (Kato Engineering Inc.).
Key specifications for 505-41330-51: Mounting Facility Type and Quantity: 1 PLUG-IN TERMINAL(S) FIRST MOUNTING FACILITY; Mounting Facility Type and Quantity: 3 SLOTTED HOLE SECOND MOUNTING FACILITY; Overall Height: 0.810 INCHES NOMINAL IN; Main Contact Maximum Voltage Rating in Volts: 28.0 DC. 19 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.