The Lens,optical Instrument, cataloged under National Stock Number 6650-00-985-5332, 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 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-00-985-5332 |
| Primary Part Number | 10515836 |
| 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 /FIRE CONTROL/ XM36 |
| Individual Lens Style | DOUBLE CONVEX AND MENISCUS DIVERGING |
| Back Focal Length | 6.501 INCHES IN |
| Front Focal Length | 5.922 INCHES IN |
| Element Left Surface Radius | 4.275 INCHES IN |
| Equivalent Focal Length | 6.790 INCHES IN |
| Element Right Surface Radius | 2.809 INCHES IN |
| Material Document and Classification | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| Diameter | 2.047 INCHES NOMINAL IN |
| Abbe Constant | 63.500 AND 36.600 |
| Axial Thickness | 0.461 INCHES NOMINAL AND 0.118 INCHES NOMINAL IN |
| Compound Lens Edge Thickness | 0.398 INCHES NOMINAL IN |
| Material | GLASS OPTICAL |
| Refraction Index | 1.5110 NOMINAL AND 1.6170 NOMINAL |
| Compound Lens Style | DOUBLET |
| Compound Lens Overall Axial Thickness | 0.579 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 |
NSN 6650-00-985-5332 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 6650-00-985-5332 has 2 manufacturer part numbers on file: 10515836 (Polytech Defense Spares Llc), 10515836 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 10515836: FSC Application Data: PERISCOPE /FIRE CONTROL/ XM36; Individual Lens Style: DOUBLE CONVEX AND MENISCUS DIVERGING; Back Focal Length: 6.501 INCHES IN; Front Focal Length: 5.922 INCHES IN. 16 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 6650-00-985-5332 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.