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 5950-01-441-2143
NSN 5999-00-238-3114
NSN 5905-01-247-2122
NSN 5910-00-481-6958
NSN 6620-01-087-4361
NSN 5915-01-051-8494
NSN 5975-01-415-4283
NSN 5915-00-116-2035
NSN 6685-01-058-1179
NSN 7035-01-425-8063
NSN 5960-00-201-5265
NSN 7035-01-256-9598