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 6320-00-456-0836
NSN 6320-01-399-6177
NSN 6145-00-286-9588
NSN 6650-01-527-5182
NSN 5910-00-668-6791
NSN 5950-01-024-9461
NSN 5950-00-334-3011
NSN 4140-01-561-4145
NSN 5975-00-989-7416
NSN 5905-01-055-6916
NSN 5965-01-023-9359
NSN 6135-01-584-0941