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 5999-01-429-5297
NSN 6110-01-285-6464
NSN 6105-01-502-5913
NSN 6240-01-212-9756
NSN 6145-01-126-6813
NSN 6685-00-955-1232
NSN 5920-00-989-4428
NSN 6135-01-455-2233
NSN 6130-01-006-7990
NSN 6220-01-429-1294
NSN 4140-00-554-7273
NSN 6610-00-155-1334