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 5950-01-474-6085
NSN 5985-01-062-4295
NSN 5915-01-595-7283
NSN 6685-01-569-8896
NSN 5895-01-163-4468
NSN 7035-01-145-5059
NSN 5930-00-515-3604
NSN 5965-00-642-9879
NSN 5930-01-295-2312
NSN 6620-00-248-6950
NSN 6135-00-967-3112
NSN 6610-01-389-0620