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 5996-01-195-6509
NSN 5999-00-991-3548
NSN 5965-00-644-0339
NSN 5960-00-333-3540
NSN 6135-01-657-7116
NSN 2925-01-196-6187
NSN 6240-01-068-5961
NSN 6685-01-174-9094
NSN 5998-00-238-6153
NSN 5965-00-396-3411
NSN 6645-01-167-5814
NSN 7035-01-535-7320