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 6685-00-567-4911
NSN 6610-01-053-6781
NSN 5855-00-451-6155
NSN 5915-01-571-0503
NSN 5910-00-755-5601
NSN 5999-01-654-8063
NSN 5998-00-127-0910
NSN 6135-01-074-8220
NSN 5999-01-486-7731
NSN 5910-00-931-8240
NSN 6135-01-168-2944
NSN 5930-00-854-8711