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 6145-01-552-9050
NSN 6620-01-655-4591
NSN 5895-00-449-3380
NSN 5950-01-555-8152
NSN 2925-00-347-7893
NSN 5975-01-521-2709
NSN 6320-01-642-0342
NSN 5965-00-296-6116
NSN 6145-01-556-6349
NSN 5998-01-012-8730
NSN 5945-01-135-3457
NSN 6135-00-145-8884