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 5945-01-468-6041
NSN 5975-01-424-0268
NSN 5855-01-319-9757
NSN 4140-01-170-4700
NSN 5905-01-305-5178
NSN 5999-00-439-6547
NSN 6145-00-490-9180
NSN 5855-01-114-3513
NSN 6620-01-168-8450
NSN 5975-01-658-2278
NSN 5945-01-360-1055
NSN 6645-01-647-6207