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 6685-01-123-9275
NSN 2925-01-303-5266
NSN 6650-00-650-8080
NSN 5925-01-233-4738
NSN 5945-01-566-6312
NSN 5925-00-846-2234
NSN 6610-00-263-3076
NSN 6110-01-507-9307
NSN 5945-00-493-0358
NSN 6620-01-608-0978
NSN 5999-01-029-6581
NSN 5990-01-047-8168