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 5905-01-506-0986
NSN 6685-00-673-3909
NSN 5925-00-013-9423
NSN 5945-01-116-2129
NSN 7035-01-513-0143
NSN 6240-01-143-8976
NSN 6320-00-937-5625
NSN 6135-00-823-3034
NSN 6145-01-108-1202
NSN 6105-00-421-8593
NSN 5920-01-372-0840
NSN 6145-01-221-4300