The Lens,optical Instrument, cataloged under National Stock Number 6650-00-618-9397, 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 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-00-618-9397 |
| Primary Part Number | 1073972PC1 |
| 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 |
| FSC Application Data | RANGE FINDER,FIRE CONTROL |
| Individual Lens Style | DOUBLE CONVEX AND DOUBLE CONCAVE |
| Back Focal Length | 2.841 INCHES IN |
| Front Focal Length | 2.359 INCHES IN |
| Equivalent Focal Length | 2.765 INCHES IN |
| Material Document and Classification | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| Diameter | 1.219 INCHES MINIMUM AND 1.220 INCHES MAXIMUM IN |
| Abbe Constant | 58.800 AND 36.200 |
| Axial Thickness | 0.394 INCHES NOMINAL AND 0.157 INCHES NOMINAL IN |
| Compound Lens Edge Thickness | 0.436 INCHES NOMINAL IN |
| Material | GLASS OPTICAL |
| Refraction Index | 1.6110 NOMINAL AND 1.6208 NOMINAL |
| Compound Lens Style | DOUBLET |
| Compound Lens Overall Axial Thickness | 0.551 INCHES NOMINAL IN |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 1073972PC1 | Dunlin Manufacturing / Skypen Industries Inc Dba Dunlin Mfg Co (USA) |
| 1073972PC1 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 1073972PC1 | 5/9 Secondary reference F and H Mfg Corp |
| 1073972PC1 | 5/9 Secondary reference Grayco Optical Corp |
| 1073972PC1 | 5/9 Secondary reference L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division |
NSN 6650-00-618-9397 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 6650-00-618-9397 has 2 manufacturer part numbers on file: 1073972PC1 (Dunlin Manufacturing / Skypen Industries Inc Dba Dunlin Mfg Co), 1073972PC1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 1073972PC1: FSC Application Data: RANGE FINDER,FIRE CONTROL; Individual Lens Style: DOUBLE CONVEX AND DOUBLE CONCAVE; Back Focal Length: 2.841 INCHES IN; Front Focal Length: 2.359 INCHES IN. 14 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 6650-00-618-9397 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.