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 6685-01-616-9573
NSN 5920-01-444-1397
NSN 5975-00-683-2743
NSN 5895-01-086-0491
NSN 5945-00-516-8761
NSN 5996-01-441-1594
NSN 6610-01-081-9237
NSN 5835-01-242-9806
NSN 5930-01-011-4230
NSN 5960-00-406-4333
NSN 6645-01-581-5214
NSN 6130-01-015-6458