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 2925-00-355-5130
NSN 5996-01-138-8678
NSN 6685-01-449-6446
NSN 2925-00-010-9609
NSN 5985-00-274-4062
NSN 4140-01-234-3276
NSN 5925-00-216-8767
NSN 6135-01-492-5717
NSN 6240-01-347-0072
NSN 5905-01-628-7559
NSN 5998-01-652-3736
NSN 5905-01-483-1338