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 5998-00-205-8803
NSN 6650-00-871-2983
NSN 5915-00-351-7355
NSN 6685-01-160-8579
NSN 5996-01-488-4976
NSN 5975-01-654-6211
NSN 5910-01-540-9641
NSN 7035-01-565-5515
NSN 6320-01-307-6505
NSN 6135-01-185-3614
NSN 5960-01-399-4327
NSN 5925-01-524-4264