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 6645-00-127-3835
NSN 6650-01-118-2222
NSN 5915-01-090-0478
NSN 6650-01-348-2407
NSN 5935-01-214-7612
NSN 6110-01-420-1861
NSN 5835-01-529-3050
NSN 4140-01-504-3424
NSN 5999-01-003-8461
NSN 5985-01-267-1991
NSN 5930-01-345-2966
NSN 5930-00-941-1443