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 5920-01-535-0796
NSN 2925-01-464-3093
NSN 5975-01-027-1642
NSN 4140-00-907-6967
NSN 7035-01-462-5766
NSN 6145-00-394-4511
NSN 5920-01-504-9497
NSN 5905-00-111-4750
NSN 6105-00-309-4586
NSN 6220-01-207-8068
NSN 6105-01-641-3334
NSN 5996-01-020-0567