OCCC-2020-Z-0.4M-UC

CONFIGURATION: DISC, PLANO-CONCAVE (0.4 METER)
DIAMETER: 2.000″+.000″/-.005″
THICKNESS: 0.200″+/-.010″
WEDGE ERROR: 5 ARC MINUTES MAXIMUM
FLATNESS: 1/4 WAVE MAXIMUM AT 0.633um, 2 FACES.
SURFACE QUALITY: 20-10 PER MIL-PRF-13830, 2 FACES.
SURFACE FINISH: < 30 ANGSTROMS RMS, 2 FACES.
MATERIAL TYPE/QUALITY: ZINC SELENIDE, LASER GRADE.
COATING: NONE, UNCOATED SUBSTRATE.
MARKING: ARROW ON OD SURFACE POINTING TOWARDS
CONVAVE FACE.