Washers - Bushing, Shoulder are in stock at Tenco Electronics. In electric power, a bushing is an insulated device that allows an electrical conductor to pass safely through a grounded conducting barrier such as the case of a transformer or circuit breaker.Tenco offers inventory, pricing, & datasheets for Washers - Bushing, Shoulder. To know more, please view our large section of Washers - Bushing, Shoulder below.