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 6610-01-422-2376
NSN 6620-01-504-5756
NSN 5915-01-373-1708
NSN 5905-01-354-5123
NSN 5985-01-202-7919
NSN 5910-01-570-2178
NSN 5855-01-050-4944
NSN 7035-01-256-9598
NSN 5925-01-180-0082
NSN 6645-01-510-3496
NSN 5990-00-471-9767
NSN 6645-01-552-4570