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 5990-01-218-8976
NSN 6130-00-160-4721
NSN 6610-01-168-7943
NSN 6220-00-884-0769
NSN 6220-01-516-7972
NSN 6145-01-480-3524
NSN 6320-00-809-5744
NSN 5895-00-810-9050
NSN 6240-01-259-4265
NSN 6645-01-542-6159
NSN 5895-00-295-9286
NSN 5855-01-119-9575