The Gage,thickness,ophthalmic Lens, cataloged under National Stock Number 6540-01-610-5865, 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 Lyric Optical Company, Inc. Div Lyric Optical Dba Super Optical International. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6540-01-610-5865 |
| Primary Part Number | FE GAUGE |
| Item Name | Gage,thickness,ophthalmic Lens |
| FSC / FSG | 6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies |
| Manufacturer | Lyric Optical Company, Inc. Div Lyric Optical Dba Super Optical International |
| 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 |
|---|---|
| FE GAUGE PRIMARY | Lyric Optical Company, Inc. Div Lyric Optical Dba Super Optical International (USA) |
| Reference | Meaning |
|---|---|
| 5210NCM127961 | 5/1 Secondary reference Defense Medical Standardization Board |
| 221107 | 5/1 Secondary reference U.S. Government activity |
NSN 6540-01-610-5865 is a Gage,thickness,ophthalmic Lens, manufactured by Lyric Optical Company, Inc. Div Lyric Optical Dba Super Optical International, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
NSN 6540-01-610-5865 has 1 manufacturer part number on file: FE GAUGE (Lyric Optical Company, Inc. Div Lyric Optical Dba Super Optical International).
Key specifications for FE GAUGE: Special Features: DIGITAL THICKNESS GAUGE; USED WITH 6540-01-604-9603, OPHTHALMIC LENS FABRICATION SYSTEM; COMPLETE GAUGE AND BASE; Part Name Assigned by Controlling Agency: GAUGE THICKNESS DIGITAL; End Item Identification: 6540-01-604-9603 OPHTHALMIC LENS FABRICATION SYSTEM. 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.