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 6110-01-272-8523
NSN 5925-00-942-0350
NSN 5990-00-170-9553
NSN 6610-00-184-0833
NSN 6135-01-202-8113
NSN 2925-01-364-7926
NSN 5965-00-052-9184
NSN 5998-01-062-9075
NSN 5975-01-526-1240
NSN 6645-01-229-9769
NSN 6320-00-779-5923
NSN 6135-00-816-9052