The 177-0932-003 is a transparent, stovepipe-style cap designed for use with the 177 series of watertight incandescent indicators. Constructed from high-impact plastic, this cap features a 5/16-32NEF thread and is designed to work with an O-ring to create a seal that is water-tight, oil-tight, and dust-tight on the face of the panel. It has a maximum outer diameter of 11/16 inches and is part of an indicator system that mounts in a 15/32 inch clearance hole. This component is essential for completing a ruggedized indicator light assembly that meets or exceeds MIL-L-6723 and MIL-L-3661B standards.