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 2925-01-157-9204
NSN 6145-01-424-0354
NSN 6145-00-512-6675
NSN 5950-00-463-5549
NSN 6220-00-854-2532
NSN 6685-01-422-1181
NSN 5895-01-195-6446
NSN 7035-01-501-7259
NSN 5895-00-247-7394
NSN 5935-01-119-2060
NSN 6220-01-488-3247
NSN 5855-00-631-4565