IS 919-1963

标准号：IS 919-1963
发布日期：1965/3/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：1.1 This standard makes recommendations relating to limits of size of parts or components and to fits constituted by their assembly.1.1.1 For the sake of simplicity, and in view of the particular import-ance of cylindrical parts with circular section, only these are referred to explicitly. It should be clearly understood, however, that recommenda-tions for this type of component apply equally well to other sections; in particular, the general term ' hole ' or ' shaft' may be taken as referring to the space containing or contained by two parallel faces or tangent planes of any part, such as the width of a slot, the thickness of key, etc.