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 5905-01-323-1458
NSN 6150-00-144-7115
NSN 6220-01-342-5191
NSN 5999-01-442-9578
NSN 5985-01-292-3487
NSN 6145-01-489-1003
NSN 6620-01-083-4672
NSN 6130-00-270-8063
NSN 6145-00-027-9852
NSN 5945-01-598-6903
NSN 2925-01-609-3525
NSN 6220-01-342-5037