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 6685-01-166-1869
NSN 5925-01-570-6132
NSN 6650-01-172-0198
NSN 6150-01-620-3481
NSN 5960-00-998-4324
NSN 5930-01-023-2566
NSN 5960-00-195-6435
NSN 6110-01-649-2601
NSN 5985-01-284-1556
NSN 5985-01-552-3728
NSN 6610-00-256-8006
NSN 6150-00-925-7424