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 5998-00-783-3415
NSN 2925-01-014-0118
NSN 6320-00-894-1644
NSN 4140-00-269-5795
NSN 7035-00-250-0982
NSN 6320-01-262-8642
NSN 5975-00-644-4972
NSN 5925-01-345-1422
NSN 5855-00-477-9943
NSN 5905-00-403-9137
NSN 7035-00-620-6835
NSN 5998-01-400-4079