MIL-DTL-38999 Series II connectors are rugged and reliable, designed for harsh environments with up to 128 contacts housed in an insert. These connectors offer secure front and rear wall mount options, as well as jam nut and box mount receptacles. Featuring a wide operating temperature range of -65 °C to 200 °C, they are ideal for demanding applications. Available in aluminum shells with various plating options, including RoHS compliant finishes, they ensure long-term durability. Utilizing M39029 rear release crimp contacts, these connectors provide efficient connectivity. With a mating type of bayonet coupling and contact gender of male, they offer 500 mating cycles. The 14-5 shell size, contact size 16(5), and contact type of removable crimp contacts make them suitable for environment-resistant box and through bulkhead mounting receptacle types. Conductive in nature, they guarantee reliable performance in challenging conditions.