A transparent molded optical element having equal spherical diopter curvatures, an approximate size and shape, and has been ground and polished to a finished curvature on one surface only.
Classification: Lens blanks (other than for spectacles) not optically worked, of glass, (optical elements)
NSN 5895-01-388-0082
NSN 6145-01-158-4833
NSN 5998-01-470-6582
NSN 5999-01-446-6417
NSN 6685-00-695-5095
NSN 5905-00-532-3200
NSN 6240-00-761-7655
NSN 5835-01-442-6482
NSN 6610-01-262-2273
NSN 5910-01-339-2693
NSN 7035-00-908-4933
NSN 5996-01-582-2793