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 6150-00-054-4685
NSN 6110-00-821-5534
NSN 6220-00-676-0904
NSN 5985-01-015-0831
NSN 6105-01-653-6829
NSN 5925-01-167-7747
NSN 5895-00-181-4577
NSN 5835-01-013-9321
NSN 7035-01-480-4267
NSN 5910-01-171-1499
NSN 6685-00-371-2161
NSN 5930-01-079-7010