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 5935-01-284-6736
NSN 5975-01-431-8814
NSN 5985-01-532-8061
NSN
NSN 6110-00-244-0427
NSN 5935-01-082-1001
NSN 6130-00-583-9925
NSN 6110-01-076-4060
NSN 6135-01-230-4399
NSN 6645-01-295-9995
NSN 6145-00-269-4271
NSN 6240-01-633-9357