The Metal Front Bifocal, cataloged under National Stock Number 6540-01-504-0416, 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 Opticast Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6540-01-504-0416 |
| Primary Part Number | METAL FRONT BIFOCAL |
| Item Name | Metal Front Bifocal |
| FSC / FSG | 6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies |
| Manufacturer | Opticast 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 |
|---|---|
| METAL FRONT BIFOCAL PRIMARY | Opticast Inc (USA) |
| Reference | Meaning |
|---|---|
| 02-2384 | 5/1 Secondary reference U.S. Government activity |
| 6540NCM021755 | 5/1 Secondary reference Defense Medical Standardization Board |
NSN 6540-01-504-0416 is a Metal Front Bifocal, manufactured by Opticast Inc, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
NSN 6540-01-504-0416 has 1 manufacturer part number on file: METAL FRONT BIFOCAL (Opticast Inc).
Key specifications for METAL FRONT BIFOCAL: Special Features: REPLACEMENT PART FOR THE OPTICAST LENS MOLD; Part Name Assigned by Controlling Agency: METAL FRONT BIFOCAL REPLACEMENT PART FOR OPTICAL LENS MOLD; End Item Identification: FOR USE WITH NSN 6540-01-504-0426, SYSTEM, MOLDING LENS. 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.