The 97-18-16S is a standard cylindrical connector receptacle shell from Amphenol's 97 Series, designed for use with size 16 crimp contacts. This receptacle features a 1-20 NPT thread specification and a 0.120 inch diameter contact hole, accommodating various wire ranges through compatible contact codes (A, D, G, J for pins and C, F, I, L for sockets). The shell is constructed with a 0.969 inch outer diameter and 1.281 inch overall length, providing a compact form factor suitable for industrial applications. The 97-18-16S is commonly used in aerospace, military, and industrial equipment where reliable cylindrical connector interfaces are required for signal and power distribution.