The 1-1825139-0 is a fully compatible substitute for the original part number 1825139-7. Both parts share identical key electrical specifications, including DPDT circuitry, On-Off-On switching function, and a 5A 120V rating. They also feature the same mechanical mounting characteristics: a 6.35mm panel cutout, 1/4-40 threaded bushing, and solder lug terminals. Additionally, the epoxy resin sealing process and electrical endurance rating of 6000 cycles are equivalent. The only variation lies in the actuator length—the 1-1825139-0 measures 10.41mm, compared to 12.19mm for the original part. This 1.78mm reduction slightly lowers the switch’s protrusion above the panel surface but does not affect electrical performance or mechanical compatibility. Therefore, the 1-1825139-0 can be used as a direct replacement in the vast majority of applications.