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 5935-01-378-8871
NSN 5915-01-174-7542
NSN 6645-01-123-7563
NSN 6685-01-483-8195
NSN 6320-00-521-9350
NSN 5960-01-063-6846
NSN 6685-01-012-2854
NSN 5935-01-580-8523
NSN 5935-00-266-8506
NSN 5855-00-763-2155
NSN 4140-01-381-0099
NSN 5920-01-459-8057