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 2925-01-063-7876
NSN 6135-01-010-0891
NSN 6610-01-238-8712
NSN 5910-01-581-1270
NSN 6685-00-971-2570
NSN 6105-00-884-8736
NSN 5945-01-204-8594
NSN 6145-01-196-4216
NSN 6145-00-170-7947
NSN 5990-00-069-2221
NSN 5935-01-254-6080
NSN 5998-01-109-3063