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 5996-01-119-6535
NSN 5985-00-703-0999
NSN 5960-01-641-5493
NSN 5960-00-146-8690
NSN 5915-01-158-2257
NSN 2925-01-633-4048
NSN 6685-01-179-2777
NSN 6320-01-067-0474
NSN 5895-01-224-9011
NSN 5925-00-895-3649
NSN 5999-01-257-8313
NSN 6620-00-160-0844