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 5950-00-100-1345
NSN 5910-00-647-3976
NSN 5920-01-415-2878
NSN 6220-00-440-0418
NSN 5910-01-027-2011
NSN 6645-01-462-2101
NSN 6320-00-405-2348
NSN 6650-01-326-1342
NSN 5895-01-599-5083
NSN 6650-00-929-3946
NSN 6110-00-477-2299
NSN 5990-01-649-4647