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 6685-00-435-9487
NSN 6135-01-235-4168
NSN 5910-01-633-9963
NSN 7035-00-763-6180
NSN 5925-01-114-0909
NSN 2925-00-660-8131
NSN 5998-01-525-8236
NSN 5895-01-633-5326
NSN 5895-01-417-3012
NSN 5925-01-548-1966
NSN 5835-01-431-6877
NSN 6145-01-076-3699