Co-operating organizations

The Mechanical Engineering Industry Standards Committee, under whose supervision this British Standard was prepared, consists of representatives from the following Government departments and scientific and industrial organizations:

Associated Offices’ Technical Committee	Engineering Equipment Users’ Association*
Association of Consulting Engineers	Gas Council
Association of Mining Electrical and	Institution of Civil Engineers
Mechanical Engineers	Institution of Gas Engineers
British Chemical Plant Manufacturers’	Institution of Heating and Ventilating
Association	Engineers
British Compressed Air Society	Institution of Mechanical Engineers*
British Electrical and Allied Manufactures’	Institution of Mechanical Engineers
Association*	(Automobile Division)
British Gear Manufactures’ Association*	Institution of Plant Engineers
British Internal Combustion Engine	Institution of Production Engineers*
Manufacturers’ Association*	Locomotive and Allied Manufacturers’
British Mechanical Engineering Confederation	Association of Great Britain*
British Pump Manufactures’ Association	London Transport Executive
British Steel Industry*	Machine Tool Trades Association
Crown Agents for Oversea Governments and	Ministry of Defence
Administrations	Ministry of Defence, Army Department
Department of Employment (H.M. Factory	National Coal Board
Inspectorate)	National Physical Laboratory (Department
Department of the Environment	of Trade and Industry)
Department of Trade and Industry*	Royal Institute of British Architects.
Electricity Council, the Central Electricity	Telecommunication Engineering and
Generating Board and the Area Boards in	Manufacturing Association
England and Wales	Water Tube Boilermakers’ Association.

The Government department and scientific and industrial organizations marked with an asterisk in the above list, together with the following, were directly represented on the committee entrusted with the preparation of this British Standard:

Association of Correspondence Colleges	Milling Cutter and Reamer Association
British Ship Research Association	Ministry of Defence, Navy Department
Cycle and Motor Association	Society of British Aerospace Companies
Gauge and Tool Makers’ Association	Steel Works Plant Association
Institution of Engineers and Shipbuilders in Scotland	Taper Pin Manufacturers’ Association

Amendments issued since publication

Amd. No.	Date	Comments
1478	July 1974
2334	July 1978
8776	September 1995	Indicated by a sideline in the margin

BS 4235-1:1972

Specification for metric keys and keyways - Parallel and taper keys

Current

Published:

22 Feb 1972