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 5945-01-500-1371
NSN 5855-00-320-4116
NSN 5895-00-774-7885
NSN 6130-01-443-3761
NSN 5985-01-320-9511
NSN 2925-00-404-6461
NSN 6135-00-221-4720
NSN 5990-00-578-6254
NSN 6135-01-434-4954
NSN 6130-00-740-3884
NSN 5905-00-871-8206
NSN 6620-01-452-8418