The Lens,optical Instrument, cataloged under National Stock Number 6650-00-768-8774, is classified within Federal Supply Class 6650 (Optical Instruments, Test Equipment, Components and Accessories) of the Instruments and Laboratory Equipment group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-00-768-8774 |
| Primary Part Number | 7688774 |
| Item Name | Lens,optical Instrument |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| 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 |
| Material | GLASS OPTICAL |
| Refraction Index | 1.6170 NOMINAL |
| Single Lens Style | DOUBLE CONVEX |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7688774 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 6650-00-768-8774 is a Lens,optical Instrument, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-00-768-8774 has 1 manufacturer part number on file: 7688774 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 7688774: 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. 12 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 6650-00-768-8774 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.