The Lantern,color Perception Testing, cataloged under National Stock Number 6540-01-452-8207, 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 Stereo Optical Company, Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 6540-01-452-8207 |
| Primary Part Number | OPTEC COLOR VISION TESTER |
| Item Name | Lantern,color Perception Testing |
| FSC / FSG | 6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies |
| Manufacturer | Stereo Optical Company, 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 |
| Part Number | Manufacturer |
|---|---|
| OPTEC COLOR VISION TESTER PRIMARY | Stereo Optical Company, Inc (USA) |
| OPTEC900 | Designs for Vision Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| 97-0985 | 5/1 Secondary reference U.S. Government activity |
NSN 6540-01-452-8207 is a Lantern,color Perception Testing, manufactured by Stereo Optical Company, Inc, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
NSN 6540-01-452-8207 has 2 manufacturer part numbers on file: OPTEC COLOR VISION TESTER (Stereo Optical Company, Inc), OPTEC900 (Designs for Vision Pty Ltd).
Key specifications for OPTEC COLOR VISION TESTER: Special Features: FARNSWORTH; CAST OR PLASTIC HOUSING; C/O: CARRYING HANDLE, APERTURE ASSEMBLY, MANUAL OR ELECTRONIC MEANS OF COLOR SELECTION, COLORED FILTERS, NEUTRAL DENSITY FILTERS, SOURCE OF ILLUMINATION, SPARE LAMP, CARRYING CASE, METAL OR PLASTIC PLATE WITH INSTRUCTIONS FOR OPERATION; SUPPLIED WITH TWO PLASTIC COVERED TEMPLATES, A SCORING TEMPLATE AND INSTRUCTIONS FOR EXAMINEE TEMPLATE; PRESENTS A SERIES OF NINE PAIRS OF RED, WHITE, GREEN COLORED LIGHTS THAT MUST BE IDENTIFIED BY THE EXAMINEE; VERTICAL PAIRS OF COLORED FILTERS ARE PERMANENT AND REPRODUCIBLE; LOCUS AND TOLERANCE FOR EACH THREE FILTERS GIVEN IN THE ICI ACCORDINATE SYSTEM; ILLUMINATION SOURCE: GE AIRPORT MARKER, 120 VOLT, 40 WATT; Part Name Assigned by Controlling Agency: LANTERN COLOR PERCEPTION TESTING FARNSWORTH 120 VOLT 40 WATT. 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.