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 5975-01-547-8763
NSN 6320-01-021-6633
NSN 5855-01-222-1242
NSN 5950-01-058-4845
NSN 5915-01-048-2817
NSN 5905-01-469-3317
NSN 5945-00-898-1464
NSN 5990-01-138-1481
NSN 5910-00-552-1983
NSN 6150-01-539-2733
NSN 5935-00-063-2535
NSN 5915-00-244-1702