Appleton A100 Conduit Bushing Brand: Appleton. Part Number: A100. O-Z/Gedney Conduit Bushing, Type A Non-Grounding, 1 in Trade, Insulated Insulated/Non-Insulated, 302 deg F, Phenolic, Black, 1-3/4 in OD x 5/8 in W Dimensions. Additional Description: APLE-A100 1 IN THRD INSLG BSHG. Catalog Description: OZ-Gedney Type A Non-Grounding Insulating Bushing, Size: 1 IN, Phenolic, Black, Connection: Threaded, 150 DEG C, 1-3/4 IN Outside Diameter, 5/8 IN Width, Third Party Certification: UL File Number E-11853, CSA 11584, For Threaded Rigid Conduit And IM..