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 5915-01-043-4869
NSN 5945-01-064-0314
NSN 5998-01-575-9741
NSN 5935-01-475-3993
NSN 2925-00-253-1655
NSN 6645-01-216-1956
NSN 6610-00-104-8223
NSN 6105-00-222-6194
NSN 5950-00-964-6744
NSN 6220-01-467-9608
NSN 5985-01-281-7333
NSN 6620-01-254-7963