BS ISO 4379:2018 specifies dimensions and tolerances for cylindrical and flanged bushes with internal diameter, d1, in the range 6 mm to 200 mm.Cross References:ISO 4382-1ISO 1302ISO 2768-1ISO 4382-2ISO 2692ISO 12301ISO 468:1982All current amendments available at time of purchase are included with the purchase of this document.