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 6610-01-376-9199
NSN 5925-00-469-7683
NSN 6135-00-134-6648
NSN 6220-01-587-8437
NSN 5895-01-423-4069
NSN 5935-01-415-2885
NSN 5910-01-092-0502
NSN 6130-00-989-9143
NSN 6685-01-181-4527
NSN 5965-00-799-5490
NSN 6620-01-629-4045
NSN 5990-01-224-8052