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 2925-01-491-0224
NSN 7035-01-069-3537
NSN 5950-01-575-3794
NSN 6145-01-459-2287
NSN 6130-00-086-9502
NSN 5910-00-532-7091
NSN 5990-00-518-0684
NSN 5960-01-328-8248
NSN 6135-00-898-6996
NSN 5915-01-580-0308
NSN 5965-01-420-6613
NSN 7035-00-884-8366