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 5960-00-723-2793
NSN 5925-00-434-5484
NSN 5999-00-180-8712
NSN 6220-00-079-0178
NSN 4140-00-471-2789
NSN 5960-00-570-6986
NSN 6620-01-231-2078
NSN 6685-00-148-9389
NSN 5975-01-301-3684
NSN 5855-00-821-7512
NSN 6645-01-528-4621
NSN 6645-01-603-9331