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 6135-01-339-4695
NSN 5920-00-943-4022
NSN 5920-01-142-1836
NSN 6620-00-454-3570
NSN 7035-01-064-6048
NSN 5998-00-936-9485
NSN 6685-01-140-3692
NSN 5945-00-422-8489
NSN 6220-01-285-7080
NSN 6220-00-371-7589
NSN 5855-00-287-5870
NSN 5960-00-401-0794