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 5910-01-177-2280
NSN 5960-01-071-6267
NSN 5996-01-252-2037
NSN 5960-01-087-8687
NSN 5999-01-098-0532
NSN 6130-01-608-4755
NSN 6220-01-533-7727
NSN 6150-00-822-8192
NSN 5905-00-389-6252
NSN 6685-01-442-9036
NSN 5975-00-389-4752
NSN 5985-01-649-6279