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 6620-01-408-4464
NSN 5975-00-226-8429
NSN 5960-01-514-5433
NSN 6650-00-782-0223
NSN 5999-00-336-9147
NSN 6130-01-592-2060
NSN 2925-01-446-6523
NSN 5905-00-962-0473
NSN 5975-01-347-3577
NSN 5915-01-381-0419
NSN 2925-01-157-9204
NSN 6650-01-063-2703