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 5920-00-138-2330
NSN 5930-01-283-4435
NSN 5855-01-162-5251
NSN 6320-01-358-0141
NSN 5930-01-376-9982
NSN 6650-00-647-1085
NSN 6220-00-956-0565
NSN 5915-01-534-7614
NSN 5975-01-155-7500
NSN 4140-01-255-9276
NSN 6685-00-623-0427
NSN 4140-01-333-2504