Heat treated
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 6135-01-413-4747
NSN 4140-01-446-8491
NSN 6645-01-088-5244
NSN 5975-01-535-0890
NSN 6650-01-231-4169
NSN 6110-01-418-4317
NSN 5990-01-473-4314
NSN 2925-01-224-1885
NSN 5998-01-055-6896
NSN 6220-01-026-2424
NSN 5935-01-387-8811
NSN 6645-01-467-9983