The 787170-4 is an AMPLIMITE 050 Series right-angle receptacle header connector, Series III, configured for 40 positions without boardlocks and without latchblocks. The connector features a thermoplastic housing rated 94V-O in black, with a steel shell plated in bright nickel over copper, and phosphor bronze contacts duplex plated with 0.00076 minimum gold on the mating end and tin-lead on the solder end. Key dimensions include an E dimension of 1.580 inches (40.13 mm), F dimension of 0.950 inches (24.13 mm), G dimension of 1.815 inches (46.10 mm), and K dimension of 1.415 inches (35.94 mm). This connector is ideal for high-density interconnect applications in aerospace, military, and industrial electronics where reliable subminiature D-type connections are required.