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 7035-01-022-1008
NSN 6685-01-557-9726
NSN 6620-01-494-9858
NSN 6135-00-635-9187
NSN 5910-01-659-6355
NSN 5950-01-097-0349
NSN 6110-01-580-2475
NSN 6320-00-646-3311
NSN 5996-01-225-8507
NSN 6145-01-518-6129
NSN 5945-00-247-3720
NSN 5895-01-058-0029