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 6645-00-494-0839
NSN 5985-00-350-6102
NSN 7035-00-286-6221
NSN 5920-00-498-5109
NSN 6135-01-301-8776
NSN 5996-00-325-6285
NSN 5920-00-009-3297
NSN 6610-01-486-3549
NSN 6320-01-067-0474
NSN 5915-01-580-0308
NSN 5950-01-486-3422
NSN 5975-00-361-0313