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 6620-00-269-5168
NSN 5895-01-107-2200
NSN 6145-01-211-9352
NSN 5935-00-433-2452
NSN 7035-01-086-0623
NSN 6685-01-111-5942
NSN 5920-00-961-0497
NSN 5835-01-653-7806
NSN 5915-00-914-7556
NSN 6645-01-356-8252
NSN 5905-01-252-9097
NSN 5999-00-801-2158