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 2925-01-097-0903
NSN 6145-00-521-0001
NSN 2925-01-595-4345
NSN 5996-00-839-8678
NSN 5915-00-070-0284
NSN 5835-01-031-7265
NSN 5915-01-377-5881
NSN 5950-01-634-0677
NSN 5945-01-398-9076
NSN 5920-01-531-6891
NSN 6320-01-388-1067
NSN 7035-00-252-7467