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 5998-01-451-5669
NSN 5975-01-428-3305
NSN 5925-00-571-0415
NSN 2925-00-215-4954
NSN 6620-00-079-0311
NSN 5950-01-032-2234
NSN 6645-01-494-3845
NSN 6320-01-631-7828
NSN 5925-01-415-8155
NSN 5999-00-899-1338
NSN 5910-01-324-6018
NSN 5925-00-862-0142