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 7035-01-391-7470
NSN 5910-01-204-7223
NSN 6130-01-420-8408
NSN 5975-01-399-1603
NSN 6105-00-442-6097
NSN 6150-01-654-1788
NSN 6145-00-929-4205
NSN 5855-01-395-7429
NSN 6650-00-361-8222
NSN 5930-01-273-0946
NSN 5855-00-482-9876
NSN 7035-01-231-2450