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 6685-01-425-4599
NSN 6650-00-909-7011
NSN 5990-01-317-5743
NSN 6145-01-352-5925
NSN 4140-01-377-2258
NSN 6135-01-136-8306
NSN 5925-00-845-8975
NSN 5990-00-267-9956
NSN 5915-01-517-6528
NSN 2925-00-611-6711
NSN 6645-01-463-3024
NSN 5915-01-648-7354