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 6650-01-487-4566
NSN 5895-00-458-2480
NSN 5996-00-630-9594
NSN 7035-01-348-5153
NSN 6130-00-562-8673
NSN 5950-00-839-2864
NSN 6240-01-553-7914
NSN 5990-01-503-0194
NSN 6685-00-316-2601
NSN 6135-01-222-0703
NSN 6685-01-412-0369
NSN 5910-00-223-5454