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 6145-01-224-7228
NSN 6240-00-753-7586
NSN 5990-00-594-7291
NSN 7035-01-313-6973
NSN 5905-00-216-6576
NSN 6320-01-384-3850
NSN 5945-01-465-7165
NSN 5990-01-024-9659
NSN 6145-00-248-4944
NSN 5855-00-256-5562
NSN 5835-00-327-6192
NSN 2925-00-934-8383