The Bifocal Mold,metal Front, cataloged under National Stock Number 6540-01-517-0845, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6540-01-517-0845 |
| Primary Part Number | BIFM6-200R 75 |
| Item Name | Bifocal Mold,metal Front |
| 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 |
|---|---|
| BIFM6-200R 75 PRIMARY | Opticast Inc (USA) |
| Reference | Meaning |
|---|---|
| 03-2712 | 5/1 Secondary reference U.S. Government activity |
| 6540NCM032331 | 5/1 Secondary reference Defense Medical Standardization Board |
NSN 6540-01-517-0845 is a Bifocal Mold,metal Front, manufactured by Opticast Inc, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
NSN 6540-01-517-0845 has 1 manufacturer part number on file: BIFM6-200R 75 (Opticast Inc).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-574-3755. Verify interchangeability with system specifications before substitution.
Key specifications for BIFM6-200R 75: Special Features: REPLACEMENT COMPONENT FOR THE BIFOCAL VISION MOLD SET,NSN: 6540-01-505-3502, PART NUMBER: MBIFS54-65,FOR MAKING PLASTIC LENS; METAL MATERIAL; 75MM DIAM. MM; Part Name Assigned by Controlling Agency: METAL FRONT BIFOCAL MOLD 6-200R 75. 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.