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 5975-01-107-7290
NSN 5990-01-414-7618
NSN 6685-01-621-3710
NSN 5985-01-600-2565
NSN 5925-00-136-6953
NSN 5855-01-642-6323
NSN 5965-01-345-9480
NSN 5996-01-391-7403
NSN 6105-00-681-6261
NSN 6130-00-431-3852
NSN 5960-00-236-3980
NSN 5920-01-423-8595