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 6110-01-324-8737
NSN 6645-01-535-7136
NSN 5930-00-518-1642
NSN 5910-00-021-2684
NSN 6220-00-557-4114
NSN 2925-01-500-0730
NSN 6320-01-578-6006
NSN 5985-00-828-9636
NSN 6240-00-908-5069
NSN 5965-01-442-0490
NSN 6620-01-051-2045
NSN 6620-01-025-3401