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 5996-01-279-4273
NSN 5925-01-010-2925
NSN 6105-01-061-2931
NSN 5905-01-163-2416
NSN 5835-00-160-7142
NSN 5945-00-054-6528
NSN 6650-01-500-1756
NSN 5905-01-285-0658
NSN 6220-01-094-5551
NSN 6320-01-381-7023
NSN 6150-01-218-8008
NSN 5905-01-336-6641