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 5998-01-442-3206
NSN 6320-01-262-8642
NSN 5920-01-630-0954
NSN 5910-00-419-7734
NSN 6135-01-641-8640
NSN 6130-00-840-4666
NSN 5985-01-243-3532
NSN 5895-01-430-7181
NSN 5895-01-509-8417
NSN 7035-01-369-1445
NSN 6650-00-527-7451
NSN 5960-01-056-6705