The Hummel part number 1.693.2500.51 is an M25 cable gland with earthing, mat stainless steel material, a thread size of 1.5, and an IP68 rating. It is designed for quick, reliable, and easy assembly of cables into boxes, panels, or electrical devices. The stainless steel shell will prevent the entry of dust and water, sound insulation, and have high strength and rigidity. The M25 thread with an external sealing ring will protect the components from dust, liquids and other foreign matters. The earthing provides maximum protection against current surges and shocks.