The 100P160-09-1-B-TC5-03 is a receptacle protection cap assembly designed for MIL-DTL-38999 Series III connectors. This shell size 09 cap features a maximum outer diameter (ØA) of 21.0 mm and a thread specification of 0.625-0.1P-0.3L-TS for secure mounting. The cap is finished with cadmium olive drab plating (5–10 microns) per QQ-P-416E Type II Class 3 over electroless nickel, providing conductive protection with 500 hours salt spray resistance suitable for aerospace and military applications. It includes a tie-wrap lanyard attachment option with a 5-inch lanyard length and standard silicone gasket. This protection cap is commonly used in harsh environments where connector protection, corrosion resistance, and secure fastening are essential for maintaining signal integrity and equipment reliability.