The Goniolaser,lens, cataloged under National Stock Number 6540-01-520-3552, is classified within Federal Supply Class 6540 (Ophthalmic Instruments, Equipment, and Supplies) of the Medical, Dental, and Veterinary Equipment group. The manufacturer of record is Volk Optical Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6540-01-520-3552 |
| Primary Part Number | G-4 GONIO NF |
| Item Name | Goniolaser,lens |
| FSC / FSG | 6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies |
| Manufacturer | Volk Optical Inc |
| Status | ACTIVE |
| 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 | EA |
| Part Number | Manufacturer |
|---|---|
| G-4 GONIO NF PRIMARY | Volk Optical Inc (USA) |
| Reference | Meaning |
|---|---|
| 6550NCM040506 | 5/1 Secondary reference Defense Medical Standardization Board |
| 04-0609 | 5/1 Secondary reference U.S. Government activity |
| G-4 MIRROR | 5/1 Secondary reference Volk Optical Inc |
NSN 6540-01-520-3552 is a Goniolaser,lens, manufactured by Volk Optical Inc, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
NSN 6540-01-520-3552 has 1 manufacturer part number on file: G-4 GONIO NF (Volk Optical Inc).
Key specifications for G-4 GONIO NF: Special Features: NON FLUID GONIOLASER; CONTACT DIAMETER 8.4 MM; LASER SPOT 1.0X IMAGE MAG 1.0X; LENS, MIRROR 4 SIDES 64 DEGREE ANGLED TO PROVIDE 360 DEGREE VIEW OF THE ANTERIOR CHAMBER; FEATURES A SMALL 8 MM RADIUS CONTACT SURFACES IDEAL FOR BOTH STATIC AND DYNAMIC GONIOSCOPY MM; Part Name Assigned by Controlling Agency: GONIOLASER LENS 4 SIDES 64 DEGREE ANGLED (1) PER PACKAGE. 0 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.