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 5930-01-089-9142
NSN 5950-01-382-9337
NSN 5910-01-303-0921
NSN 6105-01-535-0999
NSN 6320-01-564-0893
NSN 5895-00-248-2392
NSN 5895-00-771-6906
NSN 6320-01-627-8295
NSN 5925-01-501-6465
NSN 6320-01-415-0953
NSN 6685-00-539-8060
NSN 6220-01-339-6342