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 4140-00-279-3148
NSN 6110-01-128-8583
NSN 6135-01-486-1443
NSN 4140-00-531-6696
NSN 6320-00-681-1324
NSN 5905-01-415-5116
NSN 5895-01-398-8190
NSN 5855-01-218-3735
NSN 5950-01-291-2903
NSN 6320-00-578-6898
NSN 6320-01-147-9177
NSN 5910-01-237-7179