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 5915-00-480-1880
NSN 5975-01-216-4289
NSN 6610-00-663-8815
NSN 5960-01-520-4615
NSN 6610-00-150-7002
NSN 5960-00-452-0452
NSN 7035-01-416-5910
NSN 6220-01-415-8625
NSN 5999-00-711-4491
NSN 5855-00-885-8452
NSN 5905-01-525-5138
NSN 5935-01-514-0116