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 6650-00-472-8486
NSN 6645-01-428-3576
NSN 6645-01-449-8752
NSN 6650-01-048-3791
NSN 5996-01-617-1385
NSN 5975-01-360-5583
NSN 5855-01-020-7982
NSN 6645-01-068-3042
NSN 2925-01-100-3694
NSN 5910-00-724-9184
NSN 6135-01-090-5365
NSN 5895-01-059-1564