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 5910-00-892-3187
NSN 7035-00-104-7613
NSN 5925-00-313-6049
NSN 6145-00-617-4032
NSN 5910-01-483-9160
NSN 5905-01-584-7013
NSN 6150-01-564-0804
NSN 5920-01-165-5187
NSN 5990-01-443-2931
NSN 5905-00-891-2812
NSN 5960-01-452-1907
NSN 5905-01-142-6978