Heat treated
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 5835-01-485-0210
NSN 5998-01-067-9359
NSN 5920-00-420-8897
NSN 6685-00-989-6921
NSN 6145-00-301-9124
NSN 6135-01-433-2062
NSN 5960-00-170-6447
NSN 6135-00-505-0679
NSN 6220-01-171-9557
NSN 6320-01-419-6416
NSN 6220-01-116-2411
NSN 2925-00-526-4541