The Relay,electromagnetic, cataloged under National Stock Number 5945-00-403-2549, 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 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-00-403-2549 |
| Primary Part Number | B-241DM |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Te Connectivity Corporation |
| Status | ACTIVE |
| Nonpile-Up Auxiliary Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY AND 5 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 458.0 AC |
| Mounting Facility Pattern | RECTANGULAR SINGLE MOUNTING FACILITY |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.687 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Main Contact Load Current Rating at Maximum Rated Voltage | 125.0 AMPERES AC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Unthreaded Mounting Hole Diameter | 0.218 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Time Delay | 0.03 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME |
| Coil Quantity | 1 |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 29.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 5.437 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Terminal Type and Quantity | 21 PIN ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 3 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION |
| Auxiliary Contact Maximum Voltage Rating in Volts | 115.0 AC AND 28.0 DC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| B-241DM PRIMARY | Te Connectivity Corporation (USA) |
| Reference | Meaning |
|---|---|
| B241D | 5/9 Secondary reference Te Connectivity Corporation |
NSN 5945-00-403-2549 is a Relay,electromagnetic, manufactured by Te Connectivity Corporation, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-403-2549 has 1 manufacturer part number on file: B-241DM (Te Connectivity Corporation).
Key specifications for B-241DM: Nonpile-Up Auxiliary Contact Arrangement: 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY AND 5 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 5.380 INCHES MAXIMUM IN; Main Contact Maximum Voltage Rating in Volts: 458.0 AC. 16 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.
NSN 5945-00-403-2549 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.