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 6145-00-279-7136
NSN 5835-00-683-4612
NSN 5999-01-555-8994
NSN 5950-00-901-0991
NSN 5910-00-088-4067
NSN 6620-00-973-3685
NSN 5998-01-183-5829
NSN 6645-00-873-4642
NSN 6685-00-116-8073
NSN 6620-01-107-2965
NSN 7035-00-104-7613
NSN 6135-00-932-3136