The Lens,optical Instrument, cataloged under National Stock Number 6650-00-152-6537, 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 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-00-152-6537 |
| Primary Part Number | LD172599GP2 |
| 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 PLANO-CONCAVE |
| Back Focal Length | 4.501 INCHES IN |
| Front Focal Length | 4.067 INCHES IN |
| Equivalent Focal Length | 4.428 INCHES IN |
| Material Document and Classification | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| Diameter | 1.299 INCHES NOMINAL IN |
| Abbe Constant | 64.500 AND 33.800 |
| Axial Thickness | 0.335 INCHES NOMINAL AND 0.118 INCHES NOMINAL IN |
| Compound Lens Edge Thickness | 0.327 INCHES NOMINAL IN |
| Material | GLASS OPTICAL |
| Refraction Index | 1.5170 NOMINAL AND 1.6490 NOMINAL |
| Compound Lens Style | DOUBLET |
| 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 |
|---|---|
| LD172599GP2 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 6650-00-152-6537 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 6650-00-152-6537 has 1 manufacturer part number on file: LD172599GP2 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for LD172599GP2: Individual Lens Style: DOUBLE CONVEX AND PLANO-CONCAVE; Back Focal Length: 4.501 INCHES IN; Front Focal Length: 4.067 INCHES IN; Equivalent Focal Length: 4.428 INCHES IN. 12 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 6650-00-152-6537 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.