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 5945-01-622-1988
NSN 5925-01-593-8499
NSN 7035-00-064-7008
NSN 6135-01-230-4399
NSN 5985-00-280-3490
NSN 5975-00-023-8987
NSN 4140-01-571-6935
NSN 6220-01-486-8664
NSN 5920-00-432-7643
NSN 6320-01-540-4885
NSN 6145-00-406-4471
NSN 5925-01-333-2419