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 5855-01-258-6180
NSN 6145-01-429-8529
NSN 6685-00-136-2234
NSN 5910-01-277-6053
NSN 7035-01-138-3698
NSN 5965-01-258-5662
NSN 5975-00-820-1581
NSN 6610-01-461-8180
NSN 5996-00-489-4756
NSN 5925-01-237-7855
NSN 6610-01-100-3662
NSN 6645-01-442-6476