The Relay,electromagnetic, cataloged under National Stock Number 5945-00-248-2332, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Te Connectivity Corporation. Government technical data includes 19 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5945-00-248-2332 |
| Primary Part Number | MTRH-6549 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Te Connectivity Corporation |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 28.0 DC |
| Mounting Facility Pattern | TRIANGLE SINGLE MOUNTING FACILITY |
| Main Contact Load Current Rating at Maximum Rated Voltage | 2.0 AMPERES DC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Unthreaded Mounting Hole Diameter | 0.144 INCHES MINIMUM AND 0.174 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN |
| Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle | 2.094 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Winding DC Resistance Rating | 620.0 OHMS NOMINAL SINGLE WINDING |
| Time Delay | 0.005 SECONDS NOMINAL FIXED RELEASE TIME |
| Time Delay | 30.00 SECONDS NOMINAL FIXED OPERATE TIME |
| Coil Quantity | 1 |
| Environmental Protection | HERMETIC AND SHOCK RESISTANT AND VIBRATION RESISTANT |
| Cubic Measure | 2.250 CUBIC INCHES |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Material | COPPER ALLOY CASE |
| Terminal Type and Quantity | 4 WIRE HOOK ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 1 POLE, SINGLE THROW, NORMALLY OPEN, 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 |
|---|---|
| MTRH-6549 | Te Connectivity Corporation (USA) |
| Reference | Meaning |
|---|---|
| MTRH-6549 | 5/9 Secondary reference Te Connectivity Corporation |
| 31-805413-1 | 3/9 Design control — primary reference General Dynamics Advanced Information Systems Inc. Dba General Dynamics Advanced Information Systems |
| MTRH-6549 | 5/9 Secondary reference U.S. Government activity |
NSN 5945-00-248-2332 is a Relay,electromagnetic, manufactured by Te Connectivity Corporation, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-248-2332 has 1 manufacturer part number on file: MTRH-6549 (Te Connectivity Corporation).
Key specifications for MTRH-6549: Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 0.827 INCHES NOMINAL IN; Main Contact Maximum Voltage Rating in Volts: 28.0 DC; Mounting Facility Pattern: TRIANGLE SINGLE MOUNTING FACILITY. 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.