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 6105-01-460-7451
NSN 5950-01-211-6459
NSN 5999-01-255-5480
NSN 5998-00-925-3310
NSN 5975-01-176-0310
NSN 6135-00-078-9931
NSN 5855-01-608-2417
NSN 5990-01-128-7599
NSN 6650-01-497-1773
NSN 5945-00-688-9284
NSN 5905-00-147-3208
NSN 6135-01-385-7276