The Lens,optical Instrument, cataloged under National Stock Number 6650-00-155-2880, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 13 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 | 6650-00-155-2880 |
| Primary Part Number | 279422PC3 |
| Item Name | Lens,optical Instrument |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Individual Lens Style | DOUBLE CONVEX AND MENISCUS DIVERGING |
| Back Focal Length | 13.705 CENTIMETERS CM |
| Front Focal Length | 13.891 CENTIMETERS CM |
| Element Left Surface Radius | 99.2 MILLIMETERS AND -56.9 MILLIMETERS MM |
| Equivalent Focal Length | 14.057 CENTIMETERS CM |
| Element Right Surface Radius | 56.9 MILLIMETERS AND 168.1 MILLIMETERS MM |
| Diameter | 28.0 MILLIMETERS NOMINAL MM |
| Abbe Constant | 63.500 AND 33.800 |
| Axial Thickness | 5.0 MILLIMETERS NOMINAL AND 3.0 MILLIMETERS NOMINAL MM |
| Material | GLASS OPTICAL |
| Refraction Index | 1.5110 NOMINAL AND 1.6490 NOMINAL |
| Compound Lens Style | DOUBLET |
| Compound Lens Overall Axial Thickness | 8.0 MILLIMETERS NOMINAL MM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 6650-00-155-2880 is a Lens,optical Instrument, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-00-155-2880 has 2 manufacturer part numbers on file: 279422PC3 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), G11060PC3 (Keuffel and Esser Co).
Key specifications for 279422PC3: Individual Lens Style: DOUBLE CONVEX AND MENISCUS DIVERGING; Back Focal Length: 13.705 CENTIMETERS CM; Front Focal Length: 13.891 CENTIMETERS CM; Element Left Surface Radius: 99.2 MILLIMETERS AND -56.9 MILLIMETERS MM. 13 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 6650-00-155-2880 has DEMIL Code Q. 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.