1. ALL DIMENSIONS ARE IN MILLIMETERS. GkGiQf4hh 2. MATERIAL: OPTICAL GLASS PER MIL-G-174 z7K{ ,y TYPE: HZK21 CDGM NO.623581 *"%TAe7?~+ NP 1.6230 ± V ± 58.2 i8iT}^ STRIAE GRADE , ANNEAL uP~,]ci7 MELT NO. /{T&l*' 3. 'P' PITCH POLISH TO TEST PLATE WITHIN 7!O"k# POWER AND IRREGULARITY INDICATED. Fmk:[hMw 4. MANUFACTURE PER MIL-O-13830 mF4W4~" 5. SURFACE QUALITY u3T-U_:jSV 6. 'C' MAGNESIUM FLUORIDE COATING PER MI $?= $F FOR MAX TRANSMISSION AT MILLI !xs}CxEyA 7. 'G' FINE GROUND & BLACKENED PER m`yvZ4K! 8. BEVEL EDGES AT 45 DEG TO MAX FA 3efOgP=L 9. DIAMETER TO FLAT IS (REF) M2$/x`\-~ WITH SURFACE SAG OF ON SURFA
kylewen
2021-05-06 11:33
kylewen:1. ALL DIMENSIONS ARE IN MILLIMETERS. {`HbpM<=m] 2. MATERIAL: OPTICAL GLASS PER MIL-G-174 g=:o 'W$@ TYPE: HZK21 CDGM NO.623581 e$LC NP 1.6230 &n .. (2021-05-06 11:32) pte\1q[N