GOST 23360-1978 Basic norms of interchangeability. Keys couplings with prismatic Keys. Keys dimensions and Keyways sections. Limits and fits*, 1978-04-19 Update
GOST 24071-1980 Basic norms of interchangeability. Keyed joints with woodruf keys. Dimensions of keys and keyways. Tolerances and fits*, 1980-04-19 Update