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 5905-00-777-0916
NSN 6645-01-218-5234
NSN 5935-01-185-6100
NSN 5915-01-512-1327
NSN 6645-00-450-2209
NSN 6685-01-501-0412
NSN 5985-01-197-7905
NSN 5930-01-602-4169
NSN 5965-01-623-0188
NSN 2925-01-012-3162
NSN 5998-01-067-9359
NSN 5998-00-488-7406