Abstract: An electrical connector capable of withstanding a predetermined pressure differential without leakage and a predetermined axial load without dislocation of insert assemblies from their normal position in the connector shell is disclosed. The connector includes one insert assembly which may be a pin or socket insert assembly and an other insert assembly which is a socket insert assembly. The one and the other insert assemblies include contacts arranged in "piggy-back" relation. The one insert assembly is ring staked to the connector shell and the socket insert assembly is bonded to a grommet and sealed in the shell.

Abstract: A tubular sleeve of a deformable plastic is longitudinally slotted to define a plurality of laterally separated axially weakened longitudinal columns (62) the respective forward leading edges (64) of which being inserted into an annular passageway (32) formed between an insert (20) disposed in a shell (10) so that the columns curl about and the column medial portions (66) collapse in an accordian-like fashion whereby to radially interferencingly wedge and lock the columns in the passage and thereby to retain the insert in the shell. The curling could be 180.degree. causing the leading edges to retreat coaxially rearward or be 270.degree. causing the leading edges to loop about and be driven radially outward, the leading edges in either possibly engaging its rearward medial portion.