171 PG11 with O-ring gasket is a gland manufactured by OBO BETTERMANN. It is made of NBR, has an outside diameter of 1.5mm, and an internal diameter of 16mm. This gland is designed to provide a moisture-resistant and dust-proof seal around cables that enter cables into enclosures. It can be used in industrial and commercial applications to protect electronic components from dust, dirt, moisture, and other environmental conditions. The gland is suitable for use with round cables.