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 5915-00-972-5460
NSN 5985-00-762-9421
NSN 6320-00-857-4073
NSN 6130-01-446-5319
NSN 6110-01-123-7285
NSN 5990-00-116-6590
NSN 5960-00-054-7561
NSN 5925-01-350-3646
NSN 5999-01-618-6693
NSN 6650-00-754-2276
NSN 5985-01-330-7375
NSN 5920-00-081-3080