The Stand,dispensing, cataloged under National Stock Number 6540-01-507-3631, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6540-01-507-3631 |
| Primary Part Number | DS3-27IN |
| Item Name | Stand,dispensing |
| 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 |
|---|---|
| DS3-27IN PRIMARY | Opticast Inc (USA) |
| Reference | Meaning |
|---|---|
| 03-0586 | 5/1 Secondary reference U.S. Government activity |
| 6540NCM030514 | 5/1 Secondary reference Defense Medical Standardization Board |
NSN 6540-01-507-3631 is a Stand,dispensing, manufactured by Opticast Inc, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
NSN 6540-01-507-3631 has 1 manufacturer part number on file: DS3-27IN (Opticast Inc).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-658-4566. Verify interchangeability with system specifications before substitution.
Key specifications for DS3-27IN: Special Features: MONOMER DISPENSING STAND; Part Name Assigned by Controlling Agency: DISPENSER STAND FOR OPTICAST II LENS MOLDING SYSTEM; End Item Identification: OPTICAST II LENS MOLDING SYSTEM. 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.