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 5835-01-264-8782
NSN 4140-01-078-6520
NSN 5920-00-988-3533
NSN 4140-01-212-3113
NSN 6150-01-086-4503
NSN 5985-01-206-4086
NSN 5910-00-504-9059
NSN 6650-01-264-9076
NSN 6645-00-250-4680
NSN 5990-01-076-8901
NSN 5895-01-145-4419
NSN 5925-01-066-1911