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 5910-01-183-6695
NSN 6135-01-606-8140
NSN 5910-00-114-5290
NSN 6110-01-367-6526
NSN 5999-01-614-2229
NSN 6320-00-343-1798
NSN 5990-00-965-7786
NSN 5905-00-405-0792
NSN 6145-00-199-8066
NSN 7035-01-309-6709
NSN 6130-00-916-5290
NSN 6145-01-111-9553