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 6685-01-090-1203
NSN 5915-01-089-8804
NSN 6620-01-232-8550
NSN 5895-00-605-8696
NSN 4140-01-268-5098
NSN 2925-01-411-4666
NSN 5999-00-018-2285
NSN 6135-01-033-5052
NSN 6650-01-435-2993
NSN 6685-00-476-9644
NSN 5920-01-604-8869
NSN 6105-00-281-3928