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 5990-01-529-6347
NSN 5925-01-382-4907
NSN 5930-01-654-2527
NSN 6685-01-245-8726
NSN 6150-00-118-1580
NSN 5990-00-847-6957
NSN 7035-00-574-4223
NSN 6110-00-510-3788
NSN 6145-00-935-2574
NSN 5835-01-632-6627
NSN 6650-00-923-4192
NSN 6645-00-565-1569