The NESCO 1-1/4" Insulating Bushing (Model 1664) is built for professional electricians and contractors who need reliable conductor protection at EMT conduit terminations. Its smooth insulating throat eliminates the risk of nicking or abrading wire insulation during pull-through — a critical detail on commercial rough-ins, panel terminations, and knockout entries where code compliance and wire integrity matter. Lightweight and tool-free to install, this bushing threads directly onto 1-1/4" EMT conduit ends, making it a fast, dependable choice whether you're working through a panel knockout, a junction box, or a conduit body on a busy job site.

Specifications