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 6685-01-139-2588
NSN 6645-01-198-4078
NSN 6650-00-094-9410
NSN 6220-00-961-5399
NSN 6610-01-483-1317
NSN 5960-00-457-5560
NSN 6685-00-140-0890
NSN 5996-01-600-5969
NSN 2925-01-478-8191
NSN 5999-00-156-4424
NSN 6145-00-871-9112
NSN 2925-00-530-3673