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 5925-01-100-0970
NSN 5975-00-269-4365
NSN 7035-01-650-5774
NSN 6240-00-916-0900
NSN 4140-01-372-6078
NSN 6110-00-150-7844
NSN 5930-01-288-2479
NSN 5999-01-161-3557
NSN 6145-01-338-5671
NSN 5895-01-276-0576
NSN 6620-00-079-0311
NSN 5950-01-243-0835