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 5985-01-291-5337
NSN 5985-01-436-1520
NSN 2925-01-407-3437
NSN 6645-00-401-5563
NSN 5945-01-580-2128
NSN 6105-01-622-7281
NSN 5960-00-007-7071
NSN 6110-00-826-9607
NSN 5975-00-849-6703
NSN 5930-01-329-9595
NSN 6110-01-646-4195
NSN 5855-00-198-3197