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 7035-01-413-3975
NSN 6145-00-490-9180
NSN 5930-00-001-6665
NSN 5975-01-271-6846
NSN 6645-01-281-4842
NSN 5895-00-127-1893
NSN 5998-01-489-7092
NSN 5985-00-825-6201
NSN 5985-00-790-0210
NSN 6240-01-208-9587
NSN 5920-01-332-8992
NSN 5925-01-095-6397