A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 6150-00-236-5069
NSN 5935-00-458-9608
NSN 6610-01-303-2281
NSN 5960-00-470-5079
NSN 5960-00-707-3335
NSN 6220-01-438-6436
NSN 5996-01-267-8082
NSN 5935-01-393-5850
NSN 5915-01-247-3558
NSN 6610-01-433-2219
NSN 6135-01-511-1975
NSN 7035-01-371-0091