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 5835-01-439-0180
NSN 5945-01-197-7966
NSN 6105-01-035-5387
NSN 6645-01-011-0419
NSN 5985-01-382-0001
NSN 5895-01-044-5425
NSN 6130-00-505-1165
NSN 5945-01-384-2241
NSN 6320-01-211-6578
NSN 6110-00-556-0080
NSN 6685-00-009-7470
NSN 6145-01-216-2938