The Lens,optical Instrument, cataloged under National Stock Number 6650-00-757-8043, 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 15 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 | 6650-00-757-8043 |
| Primary Part Number | 7578043 |
| 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,M14A1,INTEGRATED WITH FIRE CONTROL EQUIPMENT |
| Individual Lens Style | PLANO-CONVEX |
| Back Focal Length | 4.356 INCHES IN |
| Element Left Surface Radius | 2.549 INCHES IN |
| Equivalent Focal Length | 4.540 INCHES IN |
| Element Right Surface Radius | 27.234 INCHES IN |
| Material Document and Classification | JAN-G-174, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| Diameter | 1.343 INCHES NOMINAL IN |
| Abbe Constant | 55.000 |
| Axial Thickness | 0.270 INCHES NOMINAL IN |
| Compound Lens Edge Thickness | 0.188 INCHES NOMINAL IN |
| Material | GLASS OPTICAL |
| Refraction Index | 1.6170 NOMINAL |
| Compound Lens Overall Axial Thickness | 0.270 INCHES NOMINAL IN |
| Single Lens Style | PLANO-CONVEX |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7578043 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 6650-00-757-8043 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 6650-00-757-8043 has 1 manufacturer part number on file: 7578043 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 7578043: FSC Application Data: PERISCOPE,M14A1,INTEGRATED WITH FIRE CONTROL EQUIPMENT; Individual Lens Style: PLANO-CONVEX; Back Focal Length: 4.356 INCHES IN; Element Left Surface Radius: 2.549 INCHES IN. 15 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.
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.