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 5905-01-533-6232
NSN 5960-01-142-1995
NSN 6145-00-982-4132
NSN 5990-01-581-5103
NSN 5999-01-155-5610
NSN 6130-01-236-3925
NSN 6220-00-389-6215
NSN 5975-00-768-8265
NSN 6150-00-201-9583
NSN 5925-00-757-7283
NSN 5925-01-026-9649
NSN 6620-00-981-6958