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 6645-01-391-6492
NSN 5905-00-597-6081
NSN 6650-01-390-6989
NSN 6645-01-052-8331
NSN 5910-01-633-9963
NSN 6220-01-445-5544
NSN 6150-01-127-7444
NSN 6150-00-158-0066
NSN 6610-00-247-5200
NSN 6645-00-905-7258
NSN 5920-00-378-1395
NSN 6610-00-466-3104