2-1/2 inches by 3-1/2 inches w/flat-back base; designed w/convex surface to grind a concave surface
No other part numbers with same form, fit, and function found.
A tool with a known surface diopter curvature used in the grinding or polishing of lens blanks to a prescribed surface having unequal radii of curvature.
Classification: Other ophthalmic instruments and appliances and parts and accessories
NSN 2925-00-450-7783
NSN 6135-01-604-8739
NSN 6645-01-210-4388
NSN 5996-01-038-3850
NSN 6105-00-949-3979
NSN 5925-01-242-9291
NSN 5999-01-287-2284
NSN 5950-00-368-9752
NSN 5895-00-264-2047
NSN 5950-00-257-3806
NSN 5975-00-525-9196
NSN 5835-01-408-2503