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 5990-01-020-6841
NSN 6685-01-088-7317
NSN 6610-01-346-2802
NSN 5930-01-107-5623
NSN 2925-00-720-3948
NSN 5920-00-149-0013
NSN 5915-00-789-7476
NSN 6220-00-864-3408
NSN 5975-01-396-6171
NSN 5905-00-594-2644
NSN 5915-00-551-1789
NSN 5945-01-037-8335