This standard applies to round and hexagonal handles for smooth plug gauges for checking dimensions over 3 to 300 mm and
GOST 14748-1969 Referenced Document
GOST 21474-1975 Straight and diamond knurl. Form and basic dimensions*, 1975-04-19 Update
GOST 9.073-1977 Unified system of protection against corrosion and aging. Metallic and non-metallic inorganic coatings. Types, thickness rows and designations
GOST 14748-1969 history
1969GOST 14748-1969 Cylindrical and hexahedral handles for plug-gauges. Design and dimensions