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 6645-01-459-1499
NSN 2925-01-587-3956
NSN 6220-01-113-3257
NSN 6685-01-016-7354
NSN 5905-01-194-9532
NSN 5895-00-859-2545
NSN 6105-01-226-7232
NSN 5990-00-446-0518
NSN 7035-00-205-8739
NSN 5835-01-263-1293
NSN 6145-00-296-0085
NSN 6320-00-164-4087