The 776495-4 is an AMPSEAL 16 connector cap designed for 8-way sealed connections with D-key keying and standard diameter seal. This environmentally sealed cap features 1.58 mm contact size and is constructed with black housing and green polarization ring (PLR) for positive mating identification. The connector includes integrated wedge/TPA (secondary locking) for secure contact retention and is suitable for harsh industrial and automotive environments requiring reliable environmental sealing. Common applications include power distribution, signal transmission, and sensor integration in vehicles, industrial equipment, and transportation systems where environmental protection and mating security are critical.