The Eye Pieces,20x, cataloged under National Stock Number 6540-01-493-4591, 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 M D International Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: PR.
| Parameter | Value |
|---|---|
| NSN | 6540-01-493-4591 |
| Primary Part Number | SO-2150 |
| Item Name | Eye Pieces,20x |
| FSC / FSG | 6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies |
| Manufacturer | M D International 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 | PR |
| Part Number | Manufacturer |
|---|---|
| SO-2150 PRIMARY | M D International Inc (USA) |
| Reference | Meaning |
|---|---|
| 01-0327 | 5/1 Secondary reference U.S. Government activity |
NSN 6540-01-493-4591 is a Eye Pieces,20x, manufactured by M D International Inc, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
NSN 6540-01-493-4591 has 1 manufacturer part number on file: SO-2150 (M D International Inc).
Key specifications for SO-2150: Special Features: 20X. ZOOM RANGE 8.3X-50X, OR FIXED MAGNIFICATION 12.5X; QTY: ONE PAIR; Part Name Assigned by Controlling Agency: EYE PIECES20X ZOOM RANGE8.3X-50X FIXED12.5X E.I.6540-01-491-9995; End Item Identification: FOR USE WITH END ITEM 6540-01-491-9995, MICROSCOPE, SURGICAL. 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.