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 6110-00-908-0196
NSN 5905-01-192-8865
NSN 6610-01-100-6658
NSN 6220-01-333-1319
NSN 2925-01-415-2140
NSN 5905-01-168-7806
NSN 5930-00-913-0780
NSN 6685-00-394-8354
NSN 5835-01-123-8305
NSN 6645-01-562-7154
NSN 5960-00-552-1940
NSN 6320-01-547-9877