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 5895-01-047-9104
NSN 6685-01-649-0764
NSN 6610-01-518-1264
NSN 5996-01-468-6073
NSN 5975-00-606-8604
NSN 6610-00-071-0057
NSN 6130-01-280-4684
NSN 5910-01-240-5864
NSN 6645-01-592-7563
NSN 6610-01-398-8815
NSN 5965-01-392-0049
NSN 5915-00-782-1236