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 5920-01-089-7903
NSN 5935-00-152-6601
NSN 6610-00-451-8840
NSN 5835-01-414-3258
NSN 7035-01-407-4079
NSN 6150-00-575-8961
NSN 5996-00-397-4318
NSN 6105-00-289-9993
NSN 6645-00-347-0356
NSN 2925-00-928-5931
NSN 6620-00-226-2285
NSN 5975-01-309-6463