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 5960-01-054-9639
NSN 6645-01-320-4138
NSN 5920-01-466-4500
NSN 5945-01-480-5400
NSN 6240-01-094-1218
NSN 5925-01-433-2946
NSN 6320-00-394-8458
NSN 5950-00-359-3846
NSN 5950-00-690-4305
NSN 6685-01-547-5926
NSN 6240-01-656-4920
NSN 6145-01-379-2695