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 5910-01-018-3916
NSN 5925-01-384-2670
NSN 6130-01-309-2096
NSN 5930-01-141-6901
NSN 5855-00-494-9581
NSN 6645-00-042-9587
NSN 6610-01-325-9800
NSN 6685-01-485-4728
NSN 6150-01-564-5444
NSN 5985-01-464-9610
NSN 5998-00-212-4406
NSN 6135-01-141-4916