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 6620-01-271-8984
NSN 6105-01-400-0895
NSN 5930-01-012-5617
NSN 2925-01-507-9708
NSN 6110-01-268-6215
NSN 6105-01-174-5597
NSN 6145-01-452-3604
NSN 5910-01-642-8966
NSN 6650-01-594-0680
NSN 6620-01-446-6571
NSN 5975-01-351-3354
NSN 5855-01-525-8017