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 6130-00-244-1406
NSN 6150-01-248-2795
NSN 6150-01-323-5886
NSN 6150-00-812-8145
NSN 6135-01-430-3119
NSN 5930-01-114-1081
NSN 6320-00-116-3658
NSN 6620-00-179-2575
NSN 7035-00-541-8516
NSN 5945-01-546-5123
NSN 5945-00-168-2801
NSN 6685-00-374-8108