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 6110-01-415-7890
NSN 6220-01-167-5436
NSN 6645-00-903-4916
NSN 5975-00-343-0370
NSN 5998-01-606-7317
NSN 5855-01-221-4076
NSN 5925-00-100-0102
NSN 5855-01-588-1606
NSN 6240-01-484-6712
NSN 5999-00-284-4342
NSN 5965-01-267-8536
NSN 2925-00-560-8106