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 5920-00-577-0830
NSN 6650-01-620-2026
NSN 6130-00-065-5717
NSN 5996-01-050-3141
NSN 6610-01-456-9872
NSN 6135-00-686-4777
NSN 6650-00-454-5215
NSN 6135-00-305-2052
NSN 2925-00-258-9786
NSN 6320-00-377-5683
NSN 6610-01-097-5073
NSN 5915-01-235-8349