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 6135-00-269-5843
NSN 5910-00-887-2614
NSN 6130-01-204-8215
NSN 5998-01-193-8940
NSN 5920-01-536-3934
NSN 6240-01-437-8991
NSN 6645-01-005-4862
NSN 6610-01-428-3587
NSN 5930-00-552-1946
NSN 6650-00-144-4555
NSN 5985-01-505-4688
NSN 5950-00-948-2992