The D38999/20JH21HE is a part of ITT's D38999 Series III standard cylindrical connector family. This particular series is designed for use in higher temperature commercial and military applications, up to 175°C. It has 20 pin contacts, in 2 rows of 10, with threaded, bayonet, and crimp couplings. It provides a MIL-DTL-38999 Series III interface, along with an environmentally sealed, hermetically sealed design, making it ideal for harsh environments. The D38999/20JH21HE is a cost-effective solution for signal, power, and coax interconnection requirements.