| NC-0021 (OS) | OS-1250 | 1,050 | 4.00 | 70.00 | 90.00 | 1.25 - 2.00µm | Fully blocked Lowers | Ø25.00 | 3.30 | Ø21.00 | Mounted in standard holders | Silicon | Scratch/Dig - F/F (80/50) to MIL-F-48616 (section 4.6.7.2) | B or better | | | | | | | | | | | | |
| NC-0022 (OS) | OS-1500 | 1,320 | 4.00 | 60.00 | 70.00 | 1.50 - 3.00µm | Fully blocked Lowers | Ø25.00 | 3.30 | Ø21.00 | Mounted in standard holders | Fused Quartz | Scratch/Dig - F/F (80/50) to MIL-F-48616 (section 4.6.7.2) | B or better | | | | | | | | | | | | |
| NC-0023 (OS) | OS-1700 | 1,535 | 4.00 | 60.00 | 70.00 | 1.70 - 3.00µm | Fully blocked Lowers | Ø25.00 | 3.30 | Ø21.00 | Mounted in standard holders | Fused Quartz | Scratch/Dig - F/F (80/50) to MIL-F-48616 (section 4.6.7.2) | B or better | | | | | | | | | | | | |
| NC-0025 (OS) | OS-2000 | 1,900 | 4.00 | 70.00 | 80.00 | 2.00 - 4.00µm | Fully blocked Lowers | Ø25.00 | 3.30 | Ø21.00 | Mounted in standard holders | Germanium | Scratch/Dig - F/F (80/50) to MIL-F-48616 (section 4.6.7.2) | B or better | | | | | | | | | | | | |
| NC-0026 (OS) | OS-3600 | 3,320 | 4.00 | 70.00 | 80.00 | 3.60 - 6.50µm | Fully blocked Lowers | Ø25.00 | 3.30 | Ø21.00 | Mounted in standard holders | Germanium | Scratch/Dig - F/F (80/50) to MIL-F-48616 (section 4.6.7.2) | B or better | | | | | | | | | | | | |
| NC-0027 (OS) | OS-6000 | 5,550 | 4.00 | 70.00 | 80.00 | 6.00 - 10.5µm | Fully blocked Lowers | Ø25.00 | 3.30 | Ø21.00 | Mounted in standard holders | Germanium | Scratch/Dig - F/F (80/50) to MIL-F-48616 (section 4.6.7.2) | B or better | | | | | | | | | | | | |
| NC-0020 (OS) | OS-10500 | 9,750 | 4.00 | 70.00 | 80.00 | 10.50 - 18.00µm | Fully blocked Lowers | Ø25.00 | 3.30 | Ø21.00 | Mounted in standard holders | Germanium | Scratch/Dig - F/F (80/50) to MIL-F-48616 (section 4.6.7.2) | B or better | | | | | | | | | | | | |
| NC-0024 (OS) | OS-17000 | 16,200 | 4.00 | 60.00 | 70.00 | 17.00 - 22.00µm | Fully blocked Lowers | Ø25.00 | 3.30 | Ø21.00 | Mounted in standard holders | Germanium | Scratch/Dig - F/F (80/50) to MIL-F-48616 (section 4.6.7.2) | B or better | | | | | | | | | | | | |