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 5990-01-443-2931
NSN 5985-00-818-5487
NSN 5930-01-055-7488
NSN 6320-01-029-4220
NSN 5910-01-026-9587
NSN 5905-00-584-1881
NSN 5996-01-274-6460
NSN 5855-01-645-8185
NSN 5835-00-564-0057
NSN 6130-00-359-2747
NSN 5975-00-165-3432
NSN 5960-01-462-1864