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 5960-01-599-9821
NSN 5950-01-646-9792
NSN 5998-01-012-0491
NSN 6240-00-514-3507
NSN 2925-01-231-6312
NSN 5985-01-364-8213
NSN 5905-01-160-7546
NSN 6105-01-115-3239
NSN 5895-01-378-8380
NSN 5998-01-608-5807
NSN 6110-00-221-1868
NSN 6650-00-242-7961