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 5960-01-420-4744
NSN 5960-01-189-5712
NSN 5915-01-064-4774
NSN 5996-01-176-3180
NSN 5945-00-276-7622
NSN 5960-00-622-5636
NSN 5855-01-546-9423
NSN 5945-01-449-1845
NSN 6685-01-157-9340
NSN 6145-00-167-7505
NSN 6135-01-574-6185
NSN 5960-00-452-6043