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 6150-00-661-0184
NSN 6320-01-229-6479
NSN 6220-01-544-1254
NSN 5985-00-532-3710
NSN 6620-01-571-0900
NSN 5855-00-472-2055
NSN 6645-01-384-0628
NSN 2925-01-214-5333
NSN 5935-01-313-8404
NSN 5975-00-920-1824
NSN 5910-01-088-6848
NSN 5895-00-868-9974