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 5960-01-552-0862
NSN 5985-01-563-3684
NSN 6610-01-256-6337
NSN 5855-00-797-8217
NSN 5925-01-417-9170
NSN 6610-00-477-7931
NSN 6320-01-216-1678
NSN 6685-01-055-6057
NSN 5925-01-554-9486
NSN 6110-00-497-7139
NSN 5985-01-473-4374
NSN 2925-01-100-3694