MIL-DTL-38999 Series II connectors feature up to 128 contacts housed in an insert, providing robust environmental protection with an operating temperature range of -65 °C to 200 °C. Designed for harsh environments, these connectors offer various mounting options including front and rear wall mount, jam nut, and box mount receptacles. Available in aluminum shells with multiple plating choices, they ensure reliable performance with RoHS compliant finishes. The MS27473 model is a straight plug with four gold-plated contacts, ideal for military and aerospace applications requiring secure and durable electrical connections.