Molex provides optical assemblies with MIL-DTL-38999, 28876 and ARINC connectors for military and aerospace applications Molex offers Military 38999- and 28876-style circular connector cable assemblies and ARINC 400- and 600-style avionic optical assemblies. With over 20 years of fiber optics experience, Molex can meet the demanding requirements of the military and aerospace environments with proven capabilities from design to production.