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 5930-01-437-6741
NSN 6150-01-329-4917
NSN 6685-01-141-7746
NSN 2925-01-265-2853
NSN 2925-00-021-9580
NSN 6110-01-333-0651
NSN 5905-01-540-1094
NSN 2925-01-633-4048
NSN 5985-01-289-8838
NSN 7035-01-106-3476
NSN 5945-01-076-5463
NSN 6135-01-201-5858