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 5925-01-380-7283
NSN 5985-01-472-9237
NSN 5975-01-101-2192
NSN 6110-01-290-3418
NSN 6145-01-044-3161
NSN 5925-00-019-9047
NSN 6105-00-082-3210
NSN 7035-00-286-6221
NSN 5996-01-194-1204
NSN 5990-01-461-8969
NSN 5990-00-644-3365
NSN 6135-01-014-9755