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 5998-01-277-4306
NSN 6145-01-442-5336
NSN 5895-01-475-3384
NSN 2925-01-147-6688
NSN 6685-00-166-2509
NSN 6145-00-165-3869
NSN 6145-00-313-9429
NSN 5930-01-124-8368
NSN 5998-01-427-1087
NSN 5835-01-644-4958
NSN 6150-01-224-2202
NSN 2925-01-041-8201