The Lens,optical Instrument, cataloged under National Stock Number 6650-00-152-7974, 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 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6650-00-152-7974 |
| Primary Part Number | 654752REVA |
| 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 | FIRE CONTROL COMPUTING SIGHTS AND DEVICES |
| Individual Lens Style | DOUBLE CONVEX AND PLANO-CONCAVE |
| Back Focal Length | 4.090 INCHES IN |
| Front Focal Length | 3.170 INCHES IN |
| Element Left Surface Radius | -1.705 INCHES AND 1.705 INCHES IN |
| Equivalent Focal Length | 3.952 INCHES IN |
| Element Right Surface Radius | -1.705 INCHES IN |
| Material Document and Classification | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| Diameter | 2.204 INCHES MINIMUM AND 2.205 INCHES MAXIMUM IN |
| Abbe Constant | 64.500 AND 36.200 |
| Axial Thickness | 0.866 INCHES NOMINAL AND 0.157 INCHES NOMINAL IN |
| Compound Lens Edge Thickness | 0.619 INCHES NOMINAL IN |
| Material | GLASS OPTICAL |
| Refraction Index | 1.5170 NOMINAL AND 1.6210 NOMINAL |
| Compound Lens Style | DOUBLET |
| Compound Lens Overall Axial Thickness | 1.024 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 |
|---|---|
| 654752REVA PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 265453REVF | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
NSN 6650-00-152-7974 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 6650-00-152-7974 has 1 manufacturer part number on file: 654752REVA (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 654752REVA: FSC Application Data: FIRE CONTROL COMPUTING SIGHTS AND DEVICES; Individual Lens Style: DOUBLE CONVEX AND PLANO-CONCAVE; Back Focal Length: 4.090 INCHES IN; Front Focal Length: 3.170 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 6650-00-152-7974 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.