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 5950-01-446-2984
NSN 5910-01-391-5609
NSN 5915-00-156-0909
NSN 2925-01-244-3016
NSN 6620-00-809-5156
NSN 5975-00-900-5448
NSN 6130-00-789-5231
NSN 5935-01-062-0705
NSN 7035-01-113-6492
NSN 5965-01-208-6903
NSN 6145-00-350-0167
NSN 6610-00-787-7652