which could be used to receive a snap ring not shown to captivate ring 45 to the sleeve lanyard 43 transmits forces to the operating sleeve and thus to the plug and receptacle connection causing the sleeve to overcome the spring bias and move rearwardly rearward sleeve movement causing the segmented housings to be cammed i e 34 blossom 34 radially outward from engagement with thread on the receptable shell the connector members are then released from their connection alternately the plug with coupling means could be disconnected by an 34 unscrewing 34 rotation about the receptacle preferably and in accord with this invention a moisture seal 60 of surface contact type is provided the moisture seal having multi portions being formed of a resilient rubber like material the portions being generally cylindrical in shape and coaxial and including means for sealing the forward end portion 47 of operating sleeve 40 and about forward engaging end portion 14 of receptacle 20 when mounted in a through aperture on panel 18 as shown the moisture seal is mounted to the forward end portion 47 of the operating sleeve the moisture seal having a radially inwardly directed annular shoulder 62 received within annular cavity 50 disposed around operating sleeve 40 as such annular shoulder 62 functions to seal against moisture and as a retaining ring for lanyard retainer ring 45 thereby eliminating need for the separate snap ring fig2 shows moisture seal 60 in sealed contact with the surface of panel 18 the connectors engaged.