LCS_132_CTP is a panel mount, 5mm threaded moisture sealed rigid light pipe. This 1.320"" Light pipe is round, clear color and is made of Acrylic (Clear Optical Grade) UL 94-HB. Fit into 0.312” (7.92mm) panel hole diameter with a panel max. thickness of 031” (0.8mm) to 0.125” (3.18mm). Easy assembly – insert light pipe through the panel hole, slide lock washer onto lens barrel on light pipe and twist on retaining ring. Slide PCB into position aligning LED with the end of the light pipe unit. A retaining ring and lock washer are supplied. LCS Light Pipes feature a watertight seal from the front of the panel, ideal for water, dust, and moisture protection. The lenses are made of Polycarbonate UL 94-V2, the threaded lightpipe provides positive locking for constant vibration, ideal for a robust environment.