GOST 18922-1973 Screw plug-gauges with full-form inserts for pipe cylindrical threads from 1/16"up to 4" nominal diameter. Construction and basic sizes
GOST 14034-1974 Centre holes. Dimensions*, 1974-12-22 Update
GOST 14748-1969 Cylindrical and hexahedral handles for plug-gauges. Design and dimensions
GOST 18922-1973 history
1973GOST 18922-1973 Screw plug-gauges with full-form inserts for pipe cylindrical threads from 1/16"up to 4" nominal diameter. Construction and basic sizes