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 5925-01-480-4146
NSN 5990-01-364-0813
NSN 6135-01-611-0125
NSN 6145-01-386-3564
NSN 6685-01-380-0950
NSN 5990-01-423-8189
NSN 5985-00-644-9752
NSN 5975-00-185-5243
NSN 5999-01-515-9994
NSN 5920-00-926-7560
NSN 5915-01-058-1957
NSN 5935-00-259-7003