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 5920-01-474-1504
NSN 5835-00-170-5238
NSN 5895-01-141-7025
NSN 6320-01-189-9955
NSN 6130-01-014-4543
NSN 5895-00-869-9499
NSN 6240-01-111-8291
NSN 6610-00-315-9315
NSN 6645-01-159-8787
NSN 2925-01-583-5619
NSN 5985-01-261-4866
NSN 6220-00-702-5114