The Lens,ophthalmic,compound, cataloged under National Stock Number 6540-00-164-5083, is classified within Federal Supply Class 6540 (Ophthalmic Instruments, Equipment, and Supplies) of the Medical, Dental, and Veterinary Equipment group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: PR.
| Parameter | Value |
|---|---|
| NSN | 6540-00-164-5083 |
| Item Name | Lens,ophthalmic,compound |
| FSC / FSG | 6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies |
| Status | ACTIVE |
| Supplementary Features | UNCUT |
| Style Designator | ROUND-RECTANGULAR WITH ROUNDED CORNERS |
| Diameter | 54.0 MILLIMETERS MINIMUM AND 65.0 MILLIMETERS MAXIMUM MM |
| Cross-Sectional Shape Style | SPHEROCYLINDER COMPOUND |
| Sphere Curve Outside Diopter | 7.00 MINUS MAXIMUM |
| Departure From Cited Designator | AS MODIFIED BY DIMENSIONS |
| Nondefinitive Spec/std Data | 2 TYPE AND 4 STYLE AND F CLASS |
| Height | 52.0 MILLIMETERS MINIMUM AND 60.0 MILLIMETERS MAXIMUM MM |
| Width | 52.0 MILLIMETERS MINIMUM AND 60.0 MILLIMETERS MAXIMUM MM |
| Light Transmission | UNTINTED |
| Material | GLASS SINGLE VISION |
| Cylinder Curve Outside Diopter | 1.00 PLUS MAXIMUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Unit of Issue | PR |
| Reference | Meaning |
|---|---|
| MILL16991 | 4/1 Identification reference U.S. Government activity |
NSN 6540-00-164-5083 is a Lens,ophthalmic,compound, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
Key specifications for 6540-00-164-5083: Supplementary Features: UNCUT; Style Designator: ROUND-RECTANGULAR WITH ROUNDED CORNERS; Diameter: 54.0 MILLIMETERS MINIMUM AND 65.0 MILLIMETERS MAXIMUM MM; Cross-Sectional Shape Style: SPHEROCYLINDER COMPOUND. 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.
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.