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 5975-01-363-8875
NSN 5975-00-090-9061
NSN 5855-01-162-5251
NSN 5999-00-061-1373
NSN 2925-01-196-6187
NSN 6240-00-253-7611
NSN 7035-01-555-8289
NSN 5905-01-356-0035
NSN 2925-01-633-4048
NSN 6645-01-650-1860
NSN 5996-01-643-0692
NSN 6110-01-485-0276