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 6150-01-120-8230
NSN 5930-01-029-3643
NSN 6650-00-769-3003
NSN 5975-01-333-9015
NSN 5975-00-089-3905
NSN 5999-01-257-4094
NSN 6145-01-096-5651
NSN 5950-01-120-6084
NSN 5965-01-168-8180
NSN 2925-00-707-6770
NSN 6240-01-109-4680
NSN 6135-01-222-0703