The Relay,electromagnetic, cataloged under National Stock Number 5945-01-340-7438, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5945-01-340-7438 |
| Primary Part Number | 505-35321-51 |
| 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 | 2 SLOTTED HOLE SECOND MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 28.0 DC |
| Fragility Factor | MODERATELY RUGGED |
| Mounting Facility Pattern | IN-LINE SECOND MOUNTING FACILITY |
| Arc Quenching Method | AIR |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 1.062 INCHES MINIMUM AND 1.078 INCHES MAXIMUM SECOND MOUNTING FACILITY IN |
| Main Contact Load Current Rating at Maximum Rated Voltage | 5.0 AMPERES DC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Coil Quantity | 1 |
| Environmental Protection | DUSTPROOF |
| Cubic Measure | 0.425 CUBIC INCHES |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Terminal Type and Quantity | 10 PIN ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 2 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 |
|---|---|
| 505-35321-51 PRIMARY | Kato Engineering Inc. (USA) |
| 099-00142-01 ITEM 23 | Kato Engineering Inc. (USA) |
| X-D4A-300M | Leach International Corp Div Leach International Corporation (USA) |
| Reference | Meaning |
|---|---|
| XD4A-002 | 5/9 Secondary reference Leach International Corp Div Leach International Corporation |
NSN 5945-01-340-7438 is a Relay,electromagnetic, manufactured by Kato Engineering Inc., classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-340-7438 has 3 manufacturer part numbers on file: 505-35321-51 (Kato Engineering Inc.), 099-00142-01 ITEM 23 (Kato Engineering Inc.), X-D4A-300M (Leach International Corp Div Leach International Corporation).
Key specifications for 505-35321-51: Mounting Facility Type and Quantity: 1 PLUG-IN TERMINAL(S) FIRST MOUNTING FACILITY; Mounting Facility Type and Quantity: 2 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.