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 5915-01-601-4993
NSN 6130-01-483-2017
NSN 5910-00-193-4344
NSN 6240-01-029-3701
NSN 5985-01-181-4060
NSN 6145-00-563-1103
NSN 5945-01-445-7162
NSN 4140-01-436-4755
NSN 5920-00-776-0633
NSN 6645-00-972-5239
NSN 5925-00-834-0272
NSN 5975-00-217-1313