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 5915-01-091-4629
NSN 5985-01-657-0709
NSN 5920-01-505-2597
NSN 6685-01-351-7359
NSN 6685-01-587-5948
NSN 5945-00-194-1526
NSN 6685-00-240-4177
NSN 6650-00-710-8130
NSN 6145-01-517-6451
NSN 6650-01-435-2994
NSN 5975-01-364-4065
NSN 6145-01-012-2098