2 adjacent corners cut off 45 degrees and 1.968 in. From center
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 6685-01-123-8900
NSN 5835-00-113-6090
NSN 6645-01-532-3172
NSN 5965-01-180-7070
NSN 6220-00-127-0837
NSN 4140-01-422-0439
NSN 2925-01-121-3355
NSN 6145-00-786-7980
NSN 5855-00-133-5897
NSN 5915-01-250-2451
NSN 5945-00-962-7202
NSN 5835-00-137-3926