The 133215-1 is a specialized sealing boot manufactured by TE Connectivity for use in ARINC 404 BUS II connector systems. This component is designed to provide environmental sealing and protection for aerospace and aviation connectors operating under demanding conditions. The boot is compliant with EU RoHS Directive 2011/65/EU, EU ELV Directive 2000/53/EC, and China RoHS 2, with low halogen content (Br, Cl, F < 900 ppm per homogeneous material) and is free of BFR, CFR, and PVC. It does not contain REACH SVHC substances and meets stringent aerospace reliability standards. This sealing boot is commonly used in aircraft electrical systems and avionics applications where robust environmental protection and regulatory compliance are essential.