MIL-DTL-38999 Series II connectors boast up to 128 contacts in a single insert, offering robust environmental sealing for optimal performance in harsh conditions. With an impressive operating temperature range from -65 °C to 200 °C, these connectors are designed to withstand extreme environments. Available in various configurations including front wall mount, rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. Featuring 52 insert arrangements and utilizing M39029 rear release crimp contacts, these connectors ensure secure and reliable connections. Constructed with aluminum shells and offered in a range of plating options, including RoHS certified finishes, they provide both durability and compliance. The MS27472 connectors, with their gold-plated removable crimp contacts and bayonet coupling, deliver high performance in military and industrial applications, specifically designed for environment-resistant box and bulkhead mounting receptacle types.