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 5935-00-384-3000
NSN 6685-01-109-1229
NSN 6145-01-285-0593
NSN 6645-01-156-6741
NSN 6645-01-327-2389
NSN 5915-01-228-8190
NSN 5996-01-544-1467
NSN 5945-00-547-9738
NSN 6145-01-598-9912
NSN 5910-00-809-1669
NSN 6620-01-207-0667
NSN 5975-00-201-8826