The PVS-7 O-Ring, Goggle is a sealing component used in the PVS-7 night vision goggle system. Made from durable, flexible materials, this O-ring is designed to provide an airtight and waterproof seal around the goggle housing, preventing dust, moisture, and debris from entering the device. This ensures the internal components of the PVS-7, such as the optics and electronics, remain protected and operational under various environmental conditions.