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 5835-01-085-5487
NSN 5895-01-419-6748
NSN 5935-01-179-0700
NSN 6150-00-999-2317
NSN 5905-00-842-3916
NSN 6220-01-081-7631
NSN 5950-00-109-0129
NSN 6645-00-234-7223
NSN 6320-00-994-0179
NSN 4140-01-012-4606
NSN 5930-01-452-4528
NSN 2925-00-891-9289