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 5930-01-485-3196
NSN 5920-00-972-7203
NSN 6610-01-450-5688
NSN 6685-00-993-3397
NSN 7035-01-418-5499
NSN 6150-00-448-2357
NSN 5975-01-487-6417
NSN 6610-00-278-7647
NSN 6645-01-609-7365
NSN 5950-01-319-9119
NSN 4140-01-114-5887
NSN 6645-01-004-0803