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 5945-01-320-2501
NSN 6135-00-491-9864
NSN 5935-00-707-1168
NSN 6145-01-411-9042
NSN 5965-01-107-4078
NSN 6685-00-204-6037
NSN 6320-00-701-0437
NSN 5975-01-327-3950
NSN 6685-01-086-6935
NSN 5990-01-045-2129
NSN 5960-00-903-4152
NSN 5930-01-102-3689