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 6320-00-593-0379
NSN 5905-01-319-3338
NSN 6320-00-242-3300
NSN 6610-01-443-4055
NSN 7035-01-386-5722
NSN 5950-01-046-0387
NSN 5975-01-595-2252
NSN 5910-01-612-5346
NSN 2925-01-364-7926
NSN 5910-01-351-4669
NSN 5975-00-256-9436
NSN 6105-01-616-1181