IS 6143 : 1971 Specification for Sheaves Used with Ships Blocks

1 Scope

1.1 This standard specifies the material and dimensions ofsheaves used with ships blocks of nominal sizes 1 to 12.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 210 : 1962Specification for grey iron castings

IS 318 : 1962Specification for leaded tin bronze ingots and casting

IS 1030 : 1962Specification for steel castings for general engineeringpurposes

IS 1570 : 1961Schedules for wrought steels for general engineeringpurposes

IS 1865 : 1968Specification for iron castings with spheroidal ornodular graphite

IS 2102 : 1969Allowable deviations for dimensions without specifiedtolerances

IS 2107 : 1962Specification for whiteheart malleable iron castings

IS 2108 : 1962Specification for blackheart malleable iron castings