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 5999-01-051-5681
NSN 5950-01-036-6997
NSN 6150-01-437-5552
NSN 4140-00-490-9028
NSN 5905-01-634-0595
NSN 2925-00-519-5292
NSN 6105-00-202-2469
NSN 6610-01-242-9674
NSN 5985-01-653-8483
NSN 5905-00-776-7212
NSN 6135-01-071-4923
NSN 5999-00-171-8858