7688774: LENS,OPTICAL INSTRUMENT.
The LENS,OPTICAL INSTRUMENT is a COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE optical transceiver module designed for high-speed data center interconnects. Key specifications include DIAMETER: 1.297 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN, MATERIAL: GLASS OPTICAL, ABBE CONSTANT: 55.000, AXIAL THICKNESS: 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN, REFRACTION INDEX: 1.6170 NOMINAL, SPECIAL FEATURES: EDGES CHAMFERED 0.010 TO 0.020 IN. BY 45 DEG.
BOTH SURFACES COATED WITH MAGNESIUM FLUORIDE. RIM GROUND. IN.
This part is cataloged in the U.S. Government catalog under NSN 6650-00-768-8774, 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 | 1.297 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN |
| MATERIAL | GLASS OPTICAL |
| ABBE CONSTANT | 55.000 |
| AXIAL THICKNESS | 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN |
| REFRACTION INDEX | 1.6170 NOMINAL |
| SPECIAL FEATURES | EDGES CHAMFERED 0.010 TO 0.020 IN. BY 45 DEG. BOTH SURFACES COATED WITH MAGNESIUM FLUORIDE. RIM GROUND. IN |
| BACK FOCAL LENGTH | 3.759 INCHES IN |
| SINGLE LENS STYLE | DOUBLE CONVEX |
| FSC APPLICATION DATA | PERISCOPE,TANK |
| EQUIVALENT FOCAL LENGTH | 3.859 INCHES IN |
| ELEMENT LEFT SURFACE RADIUS | 3.100 INCHES IN |
| ELEMENT RIGHT SURFACE RADIUS | 10.000 MILLIMETERS MM |
| NSN | 6650-00-768-8774 |
| FSC APPLICATION DATA | PERISCOPE,TANK |
| BACK FOCAL LENGTH | 3.759 INCHES IN |
| ELEMENT LEFT SURFACE RADIUS | 3.100 INCHES IN |
| EQUIVALENT FOCAL LENGTH | 3.859 INCHES IN |
| ELEMENT RIGHT SURFACE RADIUS | 10.000 MILLIMETERS MM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE D, TYPE 617-550 MIL SPEC SINGLE MATERIAL RESPONSE |
| DIAMETER | 1.297 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN |
| ABBE CONSTANT | 55.000 |
| AXIAL THICKNESS | 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN |
| SPECIAL FEATURES | EDGES CHAMFERED 0.010 TO 0.020 IN. BY 45 DEG. BOTH SURFACES COATED WITH MAGNESIUM FLUORIDE. RIM GROUND. IN |
No substitute or cross-reference records for this part.