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 5905-01-485-3050
NSN 5895-00-335-7443
NSN 5910-01-543-5540
NSN 4140-00-764-9282
NSN 5930-00-097-1139
NSN 6150-01-180-3813
NSN 6135-00-228-8140
NSN 6685-00-287-7564
NSN 6150-00-912-5632
NSN 2925-00-257-2872
NSN 5996-01-420-8231
NSN 6220-00-205-2040