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 6650-00-127-4581
NSN 4140-01-060-2960
NSN 2925-01-420-2362
NSN 6645-00-136-3024
NSN 5996-01-086-5290
NSN 5935-01-515-9110
NSN 5960-01-112-2321
NSN 5915-01-215-2159
NSN 5910-00-007-7607
NSN 5965-01-299-4568
NSN 5965-01-399-8454
NSN 5935-01-202-1863