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 6320-01-600-0787
NSN 5895-01-366-0365
NSN 6110-01-385-9337
NSN 5990-00-725-5417
NSN 6320-01-078-8257
NSN 6685-00-375-8426
NSN 5855-01-351-2541
NSN 5965-01-168-8180
NSN 5960-01-182-3003
NSN 5895-01-418-2240
NSN 5915-00-622-0390
NSN 6150-00-998-8608