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 5930-01-188-8518
NSN 5985-01-536-9900
NSN 5895-00-249-0542
NSN 6130-01-520-4642
NSN 6320-00-731-6134
NSN 6320-00-164-4087
NSN 5925-01-388-2763
NSN 6105-00-111-2546
NSN 5855-00-472-2055
NSN 5925-01-198-6970
NSN 6130-01-588-0297
NSN 5920-01-157-0539