The Relay,electromagnetic, cataloged under National Stock Number 5945-01-373-4881, 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 24 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5945-01-373-4881 |
| Primary Part Number | FCA-210-CW4 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Te Connectivity Corporation |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 THREADED STUD(S) SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 115.0 AC AND 28.0 DC |
| Mounting Facility Pattern | IN-LINE SINGLE MOUNTING FACILITY |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 0.625 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Precious Material | SILVER AND GOLD |
| Main Contact Load Current Rating at Maximum Rated Voltage | 4.0 AMPERES AC AND 4.0 AMPERES DC MOTOR LOAD |
| Main Contact Load Current Rating at Maximum Rated Voltage | 2.0 AMPERES AC AND 2.0 AMPERES DC LAMP LOAD |
| Main Contact Load Current Rating at Maximum Rated Voltage | 10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD |
| Main Contact Load Current Rating at Maximum Rated Voltage | 8.0 AMPERES AC AND 8.0 AMPERES DC INDUCTIVE LOAD |
| Duty Type | CONTINUOUS |
| Winding DC Resistance Rating | 320.0 OHMS NOMINAL SINGLE WINDING |
| Features Provided | POLARIZED |
| Nominal Thread Size | 0.138 INCHES SINGLE MOUNTING FACILITY IN |
| Coil Quantity | 1 |
| Surface Treatment | GOLD CONTACT |
| Environmental Protection | HERMETIC |
| Precious Material and Location | CONTACTS SILVER AND CONTACT SURFACES GOLD |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Thread Class | 2A SINGLE MOUNTING FACILITY A |
| Material | SILVER CONTACT |
| Terminal Type and Quantity | 8 WIRE HOOK ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY |
| 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 |
|---|---|
| FCA-210-CW4 PRIMARY | Te Connectivity Corporation (USA) |
| Reference | Meaning |
|---|---|
| 10125577-105 | 5/2 Secondary reference U.S. Government activity |
| FCA-210-CW4 | 3/9 Design control — primary reference Struthers-Dunn Inc. |
| FCA-210-CW4 | 5/9 Secondary reference Struthers-Dunn Inc |
NSN 5945-01-373-4881 is a Relay,electromagnetic, manufactured by Te Connectivity Corporation, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-373-4881 has 1 manufacturer part number on file: FCA-210-CW4 (Te Connectivity Corporation).
Key specifications for FCA-210-CW4: Mounting Facility Type and Quantity: 2 THREADED STUD(S) SINGLE MOUNTING FACILITY; Overall Height: 1.685 INCHES NOMINAL IN; Main Contact Maximum Voltage Rating in Volts: 115.0 AC AND 28.0 DC; Mounting Facility Pattern: IN-LINE SINGLE MOUNTING FACILITY. 24 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.