The Analyzer,vectograph, cataloged under National Stock Number 6540-01-079-3521, is classified within Federal Supply Class 6540 (Ophthalmic Instruments, Equipment, and Supplies) of the Medical, Dental, and Veterinary Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 6540-01-079-3521 |
| Item Name | Analyzer,vectograph |
| FSC / FSG | 6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies |
| Status | ACTIVE |
| General Characteristics Item Description | CAPABLE OF DEPOLARIZING LIGHT WITH AXES OF 90 DEG; USED WITH REFRACTOR AND PROJECTOR IN CONJUNCTION WITH VECTOGRAPH SLIDE AND IMAGE PROJECTED TO AN ALUMINIZED NON-DEPOLARIZING SCREEN; 6540-01-079-3519 AND 6540-01-079-3520; PHOROPTER,6540-00-877-6464; AND PROJECTOR,6540-00-388-3600 AND 6540-00-443-5864 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 31 047 00 | 3/9 Design control — primary reference House of Vision Inc the |
NSN 6540-01-079-3521 is a Analyzer,vectograph, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5305-01-716-4058. Verify interchangeability with system specifications before substitution.
Key specifications for 6540-01-079-3521: General Characteristics Item Description: CAPABLE OF DEPOLARIZING LIGHT WITH AXES OF 90 DEG; USED WITH REFRACTOR AND PROJECTOR IN CONJUNCTION WITH VECTOGRAPH SLIDE AND IMAGE PROJECTED TO AN ALUMINIZED NON-DEPOLARIZING SCREEN; 6540-01-079-3519 AND 6540-01-079-3520; PHOROPTER,6540-00-877-6464; AND PROJECTOR,6540-00-388-3600 AND 6540-00-443-5864; Part Name Assigned by Controlling Agency: ANALYZER VECTOGRAPH CAPABLE OF DEPOLARIZING LIGHT. 1 specification is 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.