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 5999-01-411-3533
NSN 5960-01-503-0362
NSN 6685-01-227-6785
NSN 5930-01-611-7978
NSN 5990-01-180-7365
NSN 6685-01-572-9965
NSN 5950-00-075-7234
NSN 5905-01-295-6607
NSN 5930-01-309-5052
NSN 5930-00-249-2942
NSN 5975-01-476-8899
NSN 5910-00-045-5012