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 6105-01-630-5996
NSN 5965-01-390-9240
NSN 5915-01-158-4425
NSN 6620-00-290-6505
NSN 5925-01-616-7531
NSN 2925-00-098-4165
NSN 5950-01-318-9512
NSN 5925-01-394-7251
NSN 6145-01-100-7104
NSN 5965-00-240-5777
NSN 6685-00-966-9688
NSN 5895-00-814-4803