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 6610-01-011-0296
NSN 5855-01-412-5147
NSN 5960-00-280-7096
NSN 5998-01-491-9872
NSN 5895-00-226-5701
NSN 5990-01-086-4825
NSN 5996-01-387-3414
NSN 5905-01-500-1546
NSN 5950-01-291-4672
NSN 6685-00-027-7186
NSN 6650-01-265-2672
NSN 6135-01-210-8715