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 5915-01-162-6334
NSN 5999-00-841-0692
NSN 5905-00-109-5933
NSN 6150-01-128-2406
NSN 5975-00-153-0050
NSN 5996-00-499-8036
NSN 6650-00-763-3282
NSN 5855-01-483-2774
NSN 4140-01-451-7829
NSN 6130-00-657-9994
NSN 5999-00-353-1234
NSN 7035-01-462-5766