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 5915-01-512-1327
NSN 6645-01-023-8020
NSN 7035-00-392-5417
NSN 6135-01-068-0119
NSN 5835-01-077-5371
NSN 6220-01-570-4257
NSN 6645-01-417-7511
NSN 6645-01-510-3496
NSN 6320-01-201-2776
NSN 5835-01-491-4613
NSN 6150-00-102-7881
NSN 5985-00-366-5192