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 6645-01-099-1511
NSN 5915-01-417-3123
NSN 6145-00-964-7466
NSN 6645-01-500-0827
NSN 5999-01-529-9689
NSN 2925-00-925-0545
NSN 7035-00-205-1932
NSN 6130-01-461-3145
NSN 5910-00-672-0012
NSN 5960-00-504-1066
NSN 4140-00-672-9531
NSN 6620-01-344-9355