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 6220-00-827-7423
NSN 5999-00-240-8720
NSN 5998-01-476-0418
NSN 6685-00-187-4166
NSN 6240-01-039-2125
NSN 5965-01-231-5047
NSN 6620-01-076-1340
NSN 5925-01-104-7351
NSN 4140-00-456-2268
NSN 5960-01-641-5493
NSN 5895-00-814-4281
NSN 5930-01-181-1644