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 5905-01-353-4690
NSN 7035-01-501-0593
NSN 5945-01-555-5509
NSN 5905-01-380-9019
NSN 5925-01-581-6040
NSN 6110-01-378-3484
NSN 5998-01-455-0314
NSN 2925-00-973-2574
NSN 6645-01-365-4091
NSN 6650-00-754-2276
NSN 5920-00-231-3922
NSN 5998-01-304-5036