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 5920-01-649-8214
NSN 5950-01-003-0465
NSN 6150-01-551-9311
NSN 6645-01-507-2887
NSN 6110-00-891-9917
NSN 7035-00-968-4848
NSN 6645-01-504-3394
NSN 5930-01-312-2467
NSN 6645-01-392-4788
NSN 5975-01-111-7119
NSN 5930-00-371-8420
NSN 6135-01-255-9129