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 6150-01-384-3918
NSN 5975-01-437-6566
NSN 6110-01-555-8410
NSN 5960-01-533-5162
NSN 6610-01-100-3662
NSN 6110-01-350-3449
NSN 6685-00-167-3801
NSN 6220-01-406-2051
NSN 5855-01-447-3137
NSN 6645-01-195-0561
NSN 7035-01-479-5268
NSN 5960-00-011-9315