The Lens,optical Instrument, cataloged under National Stock Number 6650-00-157-4140, is classified within Federal Supply Class 6650 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-00-157-4140 |
| Primary Part Number | 799639PC1 |
| Item Name | Lens,optical Instrument |
| FSC / FSG | 6650 / 66 — No Item Name Available |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Equivalent Focal Length | 4.715 CENTIMETERS CM |
| Compound Lens Overall Axial Thickness | 10.5 MILLIMETERS NOMINAL MM |
| Diameter | 27.0 MILLIMETERS NOMINAL MM |
| Material | GLASS OPTICAL |
| Individual Lens Style | DOUBLE CONVEX AND MENISCUS DIVERGING |
| Compound Lens Style | DOUBLET |
| Material Document and Classification | JAN-G-174 MIL SPEC SINGLE MATERIAL RESPONSE |
| Element Left Surface Radius | 25.6 MILLIMETERS AND -23.9 MILLIMETERS MM |
| Axial Thickness | 8.5 MILLIMETERS NOMINAL AND 2.0 MILLIMETERS NOMINAL MM |
| Abbe Constant | 33.800 AND 57.400 |
| Refraction Index | 1.6490 NOMINAL AND 1.5725 NOMINAL |
| Element Right Surface Radius | 23.9 MILLIMETERS AND 345.5 MILLIMETERS MM |
| Back Focal Length | 4.033 CENTIMETERS CM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 799639PC1 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 203034PC16 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 203034 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| G8110PC16 | Keuffel and Esser Co (USA) |
NSN 6650-00-157-4140 is a Lens,optical Instrument, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 6650 (No Item Name Available). Status: active.
NSN 6650-00-157-4140 has 4 cross-referenced part numbers: 799639PC1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 203034PC16 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 203034 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), G8110PC16 (Keuffel and Esser Co).
There is 1 known substitute for 6650-00-157-4140: 5962-00-365-5720. Verify interchangeability with system specifications before substitution.
Key specifications for 799639PC1: Equivalent Focal Length: 4.715 CENTIMETERS CM; End Item Identification: RANGEFINDER MK42; Compound Lens Overall Axial Thickness: 10.5 MILLIMETERS NOMINAL MM; Diameter: 27.0 MILLIMETERS NOMINAL MM. 14 total characteristics are documented in the Federal Logistics Information System.