MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an insert, designed for harsh environments. Featuring front and rear wall mount options, as well as jam nut receptacles, they ensure secure installations. These circular connectors, specified by military standard MIL-DTL-38999 I, boast a wide operating temperature range from -65 °C to 200 °C. Utilizing M39029 rear release crimp contacts, they guarantee reliable connections in sizes 22D, 22M, 22, 20, 16, and 8. The connectors, housed in durable aluminum shells, come in various plating options, including cadmium-free finishes for RoHS compliance. With a mating type of bayonet, they ensure easy and efficient coupling, ideal for demanding applications that require environmental resistance. The MS27468 receptacle model, with 66 gold-plated contacts, offers exceptional performance in a compact shell size 19 configuration. Meeting stringent military and industrial standards, these connectors are a reliable choice for critical operations.