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 6135-01-574-6577
NSN 5910-01-560-5681
NSN 5920-01-176-1413
NSN 5999-01-442-7643
NSN 5965-01-256-9460
NSN 6145-01-378-3110
NSN 6645-01-200-5289
NSN 6685-01-260-8121
NSN 5835-00-339-3020
NSN 6105-00-333-8972
NSN 5930-00-730-6623
NSN 6110-00-170-6520