The Rod,reading, cataloged under National Stock Number 6540-01-552-8980, 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 Lombart Brothers, Inc Dba Marco Lombart Div Marco Lombart. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6540-01-552-8980 |
| Primary Part Number | RT-7590 |
| Item Name | Rod,reading |
| FSC / FSG | 6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies |
| Manufacturer | Lombart Brothers, Inc Dba Marco Lombart Div Marco Lombart |
| 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 |
|---|---|
| RT-7590 PRIMARY | Lombart Brothers, Inc Dba Marco Lombart Div Marco Lombart (USA) |
| Reference | Meaning |
|---|---|
| 6540NCM071198 | 5/1 Secondary reference Defense Medical Standardization Board |
| 2851 | 5/1 Secondary reference U.S. Government activity |
NSN 6540-01-552-8980 is a Rod,reading, manufactured by Lombart Brothers, Inc Dba Marco Lombart Div Marco Lombart, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
NSN 6540-01-552-8980 has 1 manufacturer part number on file: RT-7590 (Lombart Brothers, Inc Dba Marco Lombart Div Marco Lombart).
Key specifications for RT-7590: Special Features: READING ROD FOR THE PHOROPTER MINUS CYLINDRICAL LENS TYPE; END ITEM NSN 6540-00-877-6464, FOUND IN ARMY ASSEMBLAGE N315, MEDICAL MATERIEL SET EYE EXAM CLINIC: DEPMEDS; Part Name Assigned by Controlling Agency: ROD READING FOR USE W/6540-00-877-6464. 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.