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 6610-00-913-7069
NSN 5990-01-047-4083
NSN 6135-01-442-0888
NSN 5998-00-763-1492
NSN 5998-01-430-3917
NSN 5945-01-167-9881
NSN 5915-00-781-3019
NSN 6105-01-634-0322
NSN 5935-01-647-5460
NSN 5935-01-492-5404
NSN 6645-01-557-8134
NSN 6320-01-519-8767