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 6650-00-111-3399
NSN 6645-01-041-3533
NSN 5905-00-183-7700
NSN 6145-01-004-8343
NSN 5996-01-096-7192
NSN 5925-01-627-8274
NSN 6150-01-273-7882
NSN 2925-01-579-8620
NSN 5985-00-695-4547
NSN 5960-01-512-0233
NSN 5855-01-452-1406
NSN 7035-01-448-4740