7980 1-G, 12.7MM Ø X 5MM TK - PLANO/PLANO, S/D:40/20, FLATNESS:λ/4, C.A.=80%

7980 1-G, 12.7mm Ø X 5mm TK
Material: Corning 7980 1-G
Diameter: 12.7mm +0.00/-.1mm
Thickness: 5mm ±.5mm
Plano/Plano Substrate
Specs both sides:
-Surface Quality: 40/20
-Flatness: 1/4 wave
-C.A. = 80%
All edges and bevels commerial polish
Wedge: 1 minute