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 6685-01-139-0270
NSN 6650-00-170-5095
NSN 6620-01-562-8816
NSN 4140-00-967-7969
NSN 6320-00-977-3930
NSN 7035-01-439-9356
NSN 5998-00-810-5194
NSN 2925-01-048-4006
NSN 6620-01-364-0195
NSN 5998-01-590-1039
NSN 5965-01-415-3865
NSN 5998-00-805-8138