MIL013830: WINDOW,OPTICAL INSTRUMENT.
The WINDOW,OPTICAL INSTRUMENT is a the manufacturer optical transceiver module designed for high-speed data center interconnects. Key specifications include diameter: 1.485 INCHES NOMINAL IN, material: GLASS OPTICAL, thickness: 3.1750 MILLIMETERS NOMINAL MM, abbe_constant: 64.500 AND 32.200, axial_thickness: 0.233 INCHES NOMINAL AND 0.107 INCHES NOMINAL IN, polished_surface: BOTH. This part is cataloged in the U.S.
Government catalog under NSN 1240-00-683-9127, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
| diameter | 1.485 INCHES NOMINAL IN |
| material | GLASS OPTICAL |
| thickness | 3.1750 MILLIMETERS NOMINAL MM |
| abbe_constant | 64.500 AND 32.200 |
| axial_thickness | 0.233 INCHES NOMINAL AND 0.107 INCHES NOMINAL IN |
| polished_surface | BOTH |
| refraction_index | 1.5170 NOMINAL |
| back_focal_length | 3.335 INCHES IN |
| single_lens_style | PLANO-CONVEX |
| front_focal_length | 88.273 INCHES IN |
| polished_periphery | NOT PROVIDED |
| compound_lens_style | DOUBLET |
| NSN | 1240-00-683-9127 |
| FSC APPLICATION DATA | TELESCOPE,105C,INTEGRATED WITH FIRE CONTROL EQUIPMENT |
| MATERIAL DOCUMENT AND CLASSIFICATION | JAN-G-174, TYPE 517-645, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED |
| DIAMETER | 42.8626 MILLIMETERS NOMINAL MM |
| POLISHED PERIPHERY | NOT PROVIDED |
| MATERIAL | GLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED |
| REFRACTION INDEX | 1.5170 NOMINAL |
| POLISHED SURFACE | BOTH |
| THICKNESS | 3.1750 MILLIMETERS NOMINAL MM |