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 5905-01-500-9918
NSN 5945-01-234-3146
NSN 5895-01-013-3855
NSN 5996-00-488-7060
NSN 5975-00-541-8531
NSN 6685-01-054-3735
NSN 5996-01-257-0265
NSN 5835-00-850-1475
NSN 5910-01-411-6110
NSN 6620-00-126-2998
NSN 6320-00-977-3930
NSN 6610-01-146-0331