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 5985-01-530-3340
NSN 6135-00-170-8819
NSN 6685-00-516-2173
NSN 5975-01-512-8525
NSN 6105-01-649-9841
NSN 5910-01-448-9546
NSN 5910-01-103-1773
NSN 5910-00-081-9173
NSN 5990-01-476-9956
NSN 5895-01-205-7681
NSN 5996-00-864-6711
NSN 7035-01-658-1623