The Relay,electromagnetic, cataloged under National Stock Number 5945-01-171-2949, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-01-171-2949 |
| Primary Part Number | B-140AP-1 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Te Connectivity Corporation |
| Status | ACTIVE |
| Nonpile-Up Auxiliary Contact Arrangement | 6 POLE, DOUBLE THROW, ONE POSITION MOMENTARY, TWO POSITIONS MAINTAINED |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 208.0 AC |
| Mounting Facility Pattern | RECTANGULAR SINGLE MOUNTING FACILITY |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.750 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Main Contact Load Current Rating at Maximum Rated Voltage | 60.0 AMPERES AC RESISTIVE LOAD |
| Main Contact Load Current Rating at Maximum Rated Voltage | 40.0 AMPERES AC MOTOR LOAD |
| Main Contact Load Current Rating at Maximum Rated Voltage | 60.0 AMPERES AC INDUCTIVE LOAD |
| Auxiliary Contact Load Current Rating at Maximum Rated Voltage | 5.0 AMPERES DC RESISTIVE LOAD |
| Coil Quantity | 4 |
| Winding Quantity | 4 |
| Operating Voltage Rating and Type at Specified Temp | 28.0 VOLTS AC 25 DEG CELSIUS ALL WINDINGS |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 2.687 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Terminal Type and Quantity | 9 THREADED STUD CONTACTS |
| Nonpile-Up Main Contact Arrangement | 3 POLE, DOUBLE THROW, TWO POSITIONS MOMENTARY |
| Auxiliary Contact Maximum Voltage Rating in Volts | 28.0 DC |
| 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 |
|---|---|
| B-140AP-1 PRIMARY | Te Connectivity Corporation (USA) |
| 1616043-7 | Te Connectivity Corporation (USA) |
| Reference | Meaning |
|---|---|
| 5945PL1356784 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 10471574 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5945-01-171-2949 is a Relay,electromagnetic, manufactured by Te Connectivity Corporation, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-171-2949 has 2 manufacturer part numbers on file: B-140AP-1 (Te Connectivity Corporation), 1616043-7 (Te Connectivity Corporation).
Key specifications for B-140AP-1: Nonpile-Up Auxiliary Contact Arrangement: 6 POLE, DOUBLE THROW, ONE POSITION MOMENTARY, TWO POSITIONS MAINTAINED; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 3.120 INCHES MAXIMUM IN; Main Contact Maximum Voltage Rating in Volts: 208.0 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.
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.