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 5930-00-153-7914
NSN 5905-01-622-2446
NSN 6110-01-194-4078
NSN 5910-01-217-0698
NSN 6610-01-023-1816
NSN 7035-01-250-5744
NSN 5985-01-278-9965
NSN 5920-00-227-6586
NSN 6110-00-862-3097
NSN 6685-00-431-4895
NSN 6135-00-276-7625
NSN 6110-00-187-4537