Attributes . In general care should be taken to ensure that a suitable entry thread sealing washer is also selected and installed, where applicable, to ensure that an effective seal is made at the entry, thereby maintaining the integrity of the enclosure or equipment IP rating; Catering to both Industrial and hazardous area applications the range covers a number of different design types which are supplied in both metallic and non-metallic forms; IP68 when fitted with a CMP O-Ring entry thread sealing washer . Names