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 5855-00-973-5717
NSN 6150-01-470-2349
NSN 5985-01-111-7379
NSN 4140-01-634-0330
NSN 6645-01-307-4096
NSN 4140-01-281-7706
NSN 2925-01-384-4139
NSN 5935-01-192-1890
NSN 7035-01-193-2667
NSN 6620-01-279-0651
NSN 5910-00-379-2349
NSN 5960-01-089-8155