Heat treated
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 6150-01-463-8530
NSN 5905-01-575-2953
NSN 6130-00-444-7549
NSN 5999-01-303-1431
NSN 6110-00-514-1119
NSN 5910-00-939-8222
NSN 5905-01-646-8049
NSN 5985-01-212-4183
NSN 6150-01-029-5979
NSN 6240-00-428-4027
NSN 5990-01-581-6871
NSN 6135-00-958-7981