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 6685-00-224-3460
NSN 6620-00-369-1916
NSN 6135-01-139-1700
NSN 4140-01-439-8574
NSN 6320-00-456-0836
NSN 5915-01-432-0324
NSN 6130-01-442-9228
NSN 5990-01-231-1214
NSN 6220-01-199-4146
NSN 6685-01-100-3012
NSN 6130-01-246-4154
NSN 6145-01-177-1842