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 2925-00-467-7150
NSN 6110-01-425-1449
NSN 5910-00-134-8818
NSN 6135-01-275-1363
NSN 6130-01-131-7405
NSN 5965-01-231-5047
NSN 6645-00-491-3611
NSN 6145-01-159-9344
NSN 5910-01-385-8539
NSN 5990-01-514-8708
NSN 5930-01-529-6214
NSN 5965-01-198-3256