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 5895-01-092-9316
NSN 4140-00-197-9712
NSN 6135-00-767-0331
NSN 2925-01-422-1542
NSN 5990-00-546-8619
NSN 5950-01-411-6227
NSN 6610-01-053-4400
NSN 6220-01-359-7818
NSN 6110-00-932-5257
NSN 6240-00-138-3082
NSN 5999-01-385-6712
NSN 2925-00-233-5644