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 6110-01-170-4066
NSN 5985-01-136-7946
NSN 6145-01-372-0600
NSN 6610-01-513-0654
NSN 5965-01-558-3425
NSN 5975-01-357-7019
NSN 4140-01-457-9527
NSN 5950-01-329-4537
NSN 6135-01-031-8078
NSN 5925-00-780-7927
NSN 2925-00-932-6262
NSN 5999-01-481-8028