tolérance de l'embrèvement sous-jacent

OBS: «embrèvement» : Usinage d'un logement sur la surface extérieure d'une pièce. [Source : René Boissier. Dictionnaire technique des fabrications mécaniques.]

CONT: Permissible countersinking and subcountersinking limits. The limits given in Figure 1-3-4 are applicable to all repairs requiring external skin fasteners in new fastener holes. External sheet metal that does not meet the minimum requirements of Figure 1-3-4 shall be dimpled. Do not use the outer dimpled sheet in the joint gauge summation to realize a minimum for subcountersinking.
OBS: ""tolerance"": total permissible variation of a size; the tolerance is the difference between the limits of size.