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 5990-00-258-0228
NSN 5945-00-475-5520
NSN 5910-01-303-8113
NSN 5905-00-421-6225
NSN 7035-00-421-0468
NSN 6685-00-925-7491
NSN 5930-00-006-3766
NSN 6645-00-445-8143
NSN 5945-01-583-1514
NSN 5975-00-931-4820
NSN 6610-00-610-0228
NSN 5999-00-389-6251