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 6650-01-338-9998
NSN 5905-01-614-5195
NSN 6110-00-577-8156
NSN 6220-01-456-3692
NSN 5915-01-478-7464
NSN 6220-01-119-5444
NSN 5960-01-641-5493
NSN 5965-01-326-0606
NSN 5895-01-207-0036
NSN 5930-00-669-7467
NSN 6610-01-156-0810
NSN 5990-01-432-4984