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 6105-00-291-0154
NSN 5930-00-195-9428
NSN 5999-00-082-4056
NSN 6650-01-622-5092
NSN 6645-01-302-9608
NSN 6145-01-579-3070
NSN 6685-01-590-9649
NSN 6150-00-503-3986
NSN 5999-01-390-0999
NSN 5965-01-205-6249
NSN 5960-01-250-5502
NSN 5910-00-203-5856