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 2925-00-918-0859
NSN 5910-00-175-8922
NSN 5990-01-204-6163
NSN 6620-00-224-3479
NSN 5965-00-111-2073
NSN 5895-01-644-8204
NSN 6645-01-390-3442
NSN 4140-00-438-2485
NSN 6105-01-415-0828
NSN 5960-01-104-0074
NSN 5835-01-442-6482
NSN 6685-01-373-7977