The Light,slit,ophthalmic, cataloged under National Stock Number 6540-01-520-3495, 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 Leica Microsystems 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6540-01-520-3495 |
| Primary Part Number | 90PMID43 |
| Item Name | Light,slit,ophthalmic |
| FSC / FSG | 6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies |
| Manufacturer | Leica Microsystems 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 |
|---|---|
| 90PMID43 PRIMARY | Leica Microsystems Inc. (USA) |
| Reference | Meaning |
|---|---|
| 04-0806 | 5/1 Secondary reference U.S. Government activity |
| 6515NCM040681 | 5/1 Secondary reference Defense Medical Standardization Board |
NSN 6540-01-520-3495 is a Light,slit,ophthalmic, manufactured by Leica Microsystems Inc., classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
NSN 6540-01-520-3495 has 1 manufacturer part number on file: 90PMID43 (Leica Microsystems Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4520-01-527-5280. Verify interchangeability with system specifications before substitution.
Key specifications for 90PMID43: Special Features: SLIT LAMP, MOTORIZED, W/LENS USE ON LEICA MODEL M501, NSN 6515-01-519-1180, SURGICAL MICROSCOPE; Part Name Assigned by Controlling Agency: SLIT LAMP MOTORIZED W/LENS FOR NSN 6515-01-519-1180 SURGICAL MICROSCOPE LEICA MODEL M501. 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.