The ITT D38999/26JH21HB is a high-reliability multipin connector used in avionics and aerospace applications. It has a total of 28 pins and can be used in plug, jam nut, or panel mount configurations. The contacts are gold-plated and are rated to withstand up to 1000 mating cycles. The connector is designed to offer superior protection against dust, vibration, and harsh environments common in aircrafts. With a shell size of J and an overall length of 57 mm, the D38999/26JH21HB is ideal for making precise connections in tight spaces.