The Lens,optical Instrument, cataloged under National Stock Number 6650-00-757-5136, 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 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-00-757-5136 |
| Primary Part Number | 7575136 |
| 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 | TELESCOPE,INTEGRATED WITH FIRE CONTROL EQUIPMENT |
| Individual Lens Style | DOUBLE CONCAVE AND DOUBLE CONVEX |
| Back Focal Length | 13.196 INCHES IN |
| Element Left Surface Radius | 1.839 INCHES IN |
| Equivalent Focal Length | 11.046 INCHES IN |
| Element Right Surface Radius | 2.231 INCHES IN |
| Material Document and Classification | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| Diameter | 1.634 INCHES NOMINAL IN |
| Abbe Constant | 36.200 AND 59.900 |
| Axial Thickness | 0.185 INCHES NOMINAL AND 0.642 INCHES NOMINAL IN |
| Compound Lens Edge Thickness | 0.752 INCHES NOMINAL IN |
| Material | GLASS OPTICAL |
| Refraction Index | 1.6210 NOMINAL AND 1.5411 NOMINAL |
| Compound Lens Style | DOUBLET |
| Compound Lens Overall Axial Thickness | 0.827 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7575136 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| 7575136 | J M L Optical Industries, Inc. Dba J M L Direct Optics Div Jml Optical Industries Llc (USA) |
| 7575136 | Plx Inc. Dba Plx Inc (USA) |
| Reference | Meaning |
|---|---|
| 7575136 | 5/9 Secondary reference Fjw Optical Systems, Inc Dba Fjw Optical Systems Inc |
NSN 6650-00-757-5136 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 6650-00-757-5136 has 3 manufacturer part numbers on file: 7575136 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 7575136 (J M L Optical Industries, Inc. Dba J M L Direct Optics Div Jml Optical Industries Llc), 7575136 (Plx Inc. Dba Plx Inc).
Key specifications for 7575136: FSC Application Data: TELESCOPE,INTEGRATED WITH FIRE CONTROL EQUIPMENT; Individual Lens Style: DOUBLE CONCAVE AND DOUBLE CONVEX; Back Focal Length: 13.196 INCHES IN; Element Left Surface Radius: 1.839 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.
NSN 6650-00-757-5136 has DEMIL Code D. 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.