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 5990-01-487-0871
NSN 6240-01-428-6725
NSN 5910-00-283-9783
NSN 5920-01-444-6923
NSN 5855-01-088-8700
NSN 5915-01-273-3002
NSN 2925-01-578-7731
NSN 5920-00-959-5664
NSN 4140-01-266-1696
NSN 5915-00-105-6173
NSN 5835-01-481-4204
NSN 5905-00-811-8671