Amphenol AIT / MS connectors are cost-effective threaded circular connectors designed for harsh environments, conforming to SAE-AS50151 (MIL-DTL-5015) standards. They feature sealed construction to resist moisture, condensation, vibration, and flash-over. Available in over 286 contact layouts, these connectors support configurations with power, signal, or mixed contacts. They come in five mounting styles, nineteen shell sizes, and options for solder or crimp termination, making them versatile for various applications.