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 6130-01-361-1793
NSN 6320-00-036-3688
NSN 5855-01-064-8961
NSN 6110-01-546-9754
NSN 6145-01-334-1677
NSN 6105-01-374-3445
NSN 6145-00-845-4488
NSN 5925-01-344-6478
NSN 6135-00-010-5275
NSN 6145-01-073-9330
NSN 6135-01-611-0125
NSN 5960-01-609-6565