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 5985-01-197-2016
NSN 7035-01-555-8793
NSN 6645-01-389-1970
NSN 5835-01-399-5820
NSN 5855-00-782-7714
NSN 5990-01-134-7756
NSN 5920-00-885-0367
NSN 6645-00-474-5689
NSN 5910-01-246-4510
NSN 7035-01-220-6392
NSN 5920-01-065-0395
NSN 5965-01-084-2385