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 5945-01-469-0193
NSN 6105-00-053-1675
NSN 6130-01-281-7727
NSN 6610-01-272-2987
NSN 5975-00-707-6245
NSN 4140-01-157-8882
NSN 5920-00-369-0923
NSN 5960-01-120-4893
NSN 6685-01-351-7359
NSN 5945-01-454-3523
NSN 5960-01-328-8248
NSN 5905-00-111-1397