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 5935-00-893-4857
NSN 5835-00-880-6477
NSN 6685-01-315-5752
NSN 6145-01-481-4195
NSN 6620-01-494-8667
NSN 5925-01-104-4893
NSN 5910-00-250-0690
NSN 6220-01-024-9444
NSN 6645-01-380-4075
NSN 5910-00-058-9610
NSN 6610-01-029-8749
NSN 5910-01-382-1663