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 6320-01-173-7950
NSN 6220-01-628-9654
NSN 5855-01-045-9728
NSN 5975-01-592-3597
NSN 6135-01-359-0051
NSN 5996-00-267-1139
NSN 6620-01-612-9030
NSN 5895-01-349-4331
NSN 5975-01-264-6803
NSN 5975-01-023-1977
NSN 5996-01-286-0735
NSN 6145-00-477-1478