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 6145-01-022-4497
NSN 6145-01-540-7375
NSN 5985-01-411-6824
NSN 5990-01-386-5561
NSN 6130-01-478-9908
NSN 5985-01-444-0825
NSN 6130-00-565-7238
NSN 6620-00-098-5652
NSN 5965-01-378-7335
NSN 5998-01-252-2762
NSN 7035-01-150-6303
NSN 5920-01-346-8378