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 5915-01-415-7033
NSN 5950-01-528-2363
NSN 5905-01-506-2407
NSN 5910-01-028-1412
NSN 6240-01-355-4425
NSN 5965-01-460-9743
NSN 5998-01-355-1412
NSN 4140-00-877-9727
NSN 6685-01-459-5047
NSN 5945-01-197-7285
NSN 5835-00-907-4390
NSN 5920-00-175-7987