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 5985-01-442-4269
NSN 5835-00-632-8621
NSN 5985-00-347-1360
NSN 5925-01-056-5127
NSN 6135-01-361-3886
NSN 5895-01-328-6632
NSN 5950-01-597-9612
NSN 6110-00-304-7201
NSN 6220-00-899-4273
NSN 5975-00-149-7647
NSN 6110-01-166-3859
NSN 5905-01-139-5053