Combination lock dial and bottom tumbler for a permutation or combination lock

For use in a permutation lock, the combination of a bottom tumbler and nose element and a knob and dial element:

• the knob portion of the knob and dial element comprising an axially extending female recess, the recess having a plurality of flats disposed symmetrically around the circumferential surface of the recess;
• and
• the nose portion of the bottom tumbler and nose element comprising an axially extending male nose, the nose having an equal plurality of flats disposed symmetrically around the circumferential surface of the nose and being adapted to fit within and engage the knob and dial recess in any one of an equal plurality of angularly spaced apart positions.

For use in a permutation lock, the combination of a bottom tumbler and nose element and a knob and dial element:

• one element having an axially extending female recess and the other element having an axially extending male nose adapted to fit within the female recess;
• and
• a plurality of angularly spaced apart, radially varying mutually interengaging surfaces being formed on the nose surface and the recess surface to key the knob and dial element together with the bottom tumbler and nose element in any one of a finite plurality of relative, angularly spaced apart positions.