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 5998-00-265-1001
NSN 5965-00-100-1291
NSN 5915-01-608-4816
NSN 6610-00-821-2635
NSN 5998-01-464-0624
NSN 5915-01-292-0073
NSN 5855-01-423-7473
NSN 6685-01-338-3809
NSN 5920-01-394-3826
NSN 6130-01-367-6010
NSN 2925-01-271-8727
NSN 6645-01-400-1383