MIL-DTL-38999 Series II connectors feature up to 128 contacts sealed for environmental protection, with an operating temperature range of -65 °C to 200 °C. These harsh environment connectors, available in various mounting styles, offer reliability in demanding applications. With nine shell sizes and 52 insert arrangements, they accommodate M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with aluminum shells and offering multiple plating options, including RoHS compliant finishes, they ensure durability and performance. Suitable for military and industrial use, these connectors provide secure connections in diverse environments.