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 5905-01-267-9000
NSN 5935-01-235-4012
NSN 6320-00-456-0836
NSN 2925-01-197-7864
NSN 6135-00-405-1989
NSN 5990-01-386-5561
NSN 5910-00-276-6883
NSN 6220-01-176-1863
NSN 6220-01-377-4957
NSN 6150-01-383-3388
NSN 6110-01-415-2326
NSN 6620-00-959-6614