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 2925-01-480-3351
NSN 6135-00-921-6487
NSN 6145-01-163-0664
NSN 5915-00-800-8199
NSN 5996-01-578-6955
NSN 6130-00-284-1629
NSN 5835-01-408-7576
NSN 5998-01-570-6291
NSN 5965-01-592-3027
NSN 5905-00-335-9727
NSN 5945-01-100-3654
NSN 5990-01-377-8991