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 5990-00-876-7893
NSN 5925-01-252-8237
NSN 5915-01-076-1816
NSN 6320-00-937-5625
NSN 5835-01-116-2369
NSN 6645-00-162-2092
NSN 6645-00-337-8298
NSN 6110-01-170-2885
NSN 4140-01-618-3705
NSN 5996-01-381-6564
NSN 5999-01-418-4318
NSN 5915-01-014-6309