The Relay,electromagnetic, cataloged under National Stock Number 5945-00-321-2043, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Microsemi Corp.-Power Management Group Holding Dba Babcock. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-00-321-2043 |
| Primary Part Number | EM729 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Microsemi Corp.-Power Management Group Holding Dba Babcock |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Pile-Up Main Contact Form Arrangement | 3C |
| Main Contact Maximum Voltage Rating in Volts | 110.0 AC AND 28.0 DC |
| Mounting Facility Pattern | TRIANGLE SINGLE MOUNTING FACILITY |
| Main Contact Load Current Rating at Maximum Rated Voltage | 10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Unthreaded Mounting Hole Diameter | 0.147 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle | 1.844 INCHES NOMINAL SINGLE 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 |
| Terminal Type and Quantity | 11 PIN ALL FUNCTIONS |
| 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 |
|---|---|
| EM729 | Microsemi Corp.-Power Management Group Holding Dba Babcock (USA) |
| 5600-S935 | Te Connectivity Corporation (USA) |
| Reference | Meaning |
|---|---|
| TD1409-00 | 5/9 Secondary reference Leach International Corp Div Leach International Corporation |
| TD1409-00 | 5/1 Secondary reference Unican Security Systems |
| 5600-S935 | 5/9 Secondary reference Hi-G Co Inc Sub of Nytronics Inc |
| 5600-S935 | 5/9 Secondary reference Te Connectivity Corporation |
| 209-075-145-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5945-00-321-2043 is a Relay,electromagnetic, manufactured by Microsemi Corp.-Power Management Group Holding Dba Babcock, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-321-2043 has 2 manufacturer part numbers on file: EM729 (Microsemi Corp.-Power Management Group Holding Dba Babcock), 5600-S935 (Te Connectivity Corporation).
Key specifications for EM729: Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 2.156 INCHES NOMINAL IN; Pile-Up Main Contact Form Arrangement: 3C; Main Contact Maximum Voltage Rating in Volts: 110.0 AC AND 28.0 DC. 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.