Nomenclature, material, heat treatment, hardness, dimensions, finish, identification and testing of spring retaining rings of the C clip type in inch and metric series. Recommended groove dimensions are also given.Cross References:BS 240:Part 1BS 240:Part 2BS 427:Part 1BS 427:Part 2BS 860BS 891:Part 1BS 891:Part 2BS 1133:Section 6BS 1134BS 1449:Part 3BBS 3189BS 3673:Part 1BS 3673:Part 2