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 5960-01-384-1300
NSN 6685-01-441-0228
NSN 5950-01-599-1976
NSN 5965-00-232-4884
NSN 5999-00-385-1722
NSN 6685-01-151-3991
NSN 5910-01-477-9444
NSN 5985-00-261-7753
NSN 5925-01-228-5413
NSN 6320-00-186-6452
NSN 6240-01-631-2634
NSN 6240-01-180-9207