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 5965-01-587-5641
NSN 5975-01-443-2082
NSN 6685-00-901-7219
NSN 5925-01-480-0110
NSN 5998-01-277-8985
NSN 6145-01-310-8597
NSN 5945-00-389-7948
NSN 5930-00-204-8100
NSN 7035-01-106-3476
NSN 5905-01-391-8009
NSN 6110-00-243-7558
NSN 5920-01-458-8075