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 6320-01-366-5157
NSN 5965-01-628-1874
NSN 2925-01-359-4027
NSN 5920-01-529-0329
NSN 6135-01-391-6515
NSN 5990-00-276-8650
NSN 5905-01-386-3167
NSN 5905-01-304-7483
NSN 6135-01-567-0739
NSN 6645-00-287-9192
NSN 2925-01-018-1348
NSN 5950-00-917-3596