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 5965-01-374-9075
NSN 5935-01-440-8627
NSN 6610-01-176-3539
NSN 6135-00-803-3012
NSN 5915-01-652-5881
NSN 5975-01-350-3425
NSN 6150-00-310-8531
NSN 5915-01-383-4928
NSN 5895-01-406-4601
NSN 5960-00-850-1277
NSN 6610-01-261-0648
NSN 6685-01-499-1995