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 6685-01-036-3690
NSN 5945-00-525-0597
NSN 5910-01-168-8008
NSN 6220-01-449-2014
NSN 5905-00-529-0508
NSN 5935-01-461-5832
NSN 5975-01-444-5624
NSN 5999-00-756-3891
NSN 2925-00-816-8765
NSN 6610-01-349-6333
NSN 5960-00-152-9488
NSN 5960-01-363-3805