PartsTable TECHNICAL DATA SHEET
NSN 6540-01-246-3744Government record, cited

Spring, Slit Light, Ophthalmic6540-01-246-3744

NSN 6540-01-246-3744 · NIIN 012463744 · Part number STCTA 12-80
Duffens Optical Inc · FSC 6540 — Ophthalmic Instruments, Equipment, and Supplies · FSG 65 — Medical, Dental, and Veterinary Equipment · CAGE 5S434
Government record, cited
NSN 6540-01-246-3744 — this item is cataloged by the U.S. Government under National Stock Number 6540-01-246-3744. Manufacturer of record part number: STCTA 12-80.
Also searched as  6540-01-246-3744 · 6540012463744 · NIIN 012463744 · 01-246-3744 · FSC 6540 Ophthalmic Instruments, Equipment, and Supplies · CAGE 5S434 · STCTA 12-80
Nearby stock numbers  ·
Features
  • Spring,slit Light,ophthalmic — FSC 6540
  • General Characteristics Item Description: USED ON SLIT LIGHT,MDL. SL-6E
  • 1 manufacturer part number on file
  • Manufacturer of record: Duffens Optical Inc
Identification
  • NSN: 6540-01-246-3744
  • NIIN: 012463744
  • FSC: 6540 — Ophthalmic Instruments, Equipment, and Supplies
  • FSG: 65 — Medical, Dental, and Veterinary Equipment
  • Primary part number: STCTA 12-80
  • Manufacturer: Duffens Optical Inc
General Description

The Spring,slit Light,ophthalmic, cataloged under National Stock Number 6540-01-246-3744, 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 Duffens Optical Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6540-01-246-3744
Primary Part NumberSTCTA 12-80
Item NameSpring,slit Light,ophthalmic
FSC / FSG6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies
ManufacturerDuffens Optical Inc
StatusACTIVE
General Characteristics Item DescriptionUSED ON SLIT LIGHT,MDL. SL-6E
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Unit of IssueEA
Cross-Reference Index
Part NumberManufacturer
STCTA 12-80 PRIMARY Duffens Optical Inc (USA)
No interchangeability data on file.
Other items in FSC 6540 — Ophthalmic Instruments, Equipment, and Supplies
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6540-00-001-0100
6540-00-001-0100 · Item name not on file
6540-00-001-0101
LENS,OPHTHALMIC,SPHERE
6540-00-001-0101
LENS,OPHTHALMIC,SPHERE
6540-00-001-0102
6540-00-001-0102 · Item name not on file
6540-00-001-0103
6540-00-001-0103 · Item name not on file
6540-00-001-0104
6540-00-001-0104 · Item name not on file
6540-00-001-0105
6540-00-001-0105 · Item name not on file
6540-00-001-0106
6540-00-001-0106 · Item name not on file

Frequently Asked Questions

What is NSN 6540-01-246-3744?

NSN 6540-01-246-3744 is a Spring,slit Light,ophthalmic, manufactured by Duffens Optical Inc, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.

What part numbers are listed for NSN 6540-01-246-3744?

NSN 6540-01-246-3744 has 1 manufacturer part number on file: STCTA 12-80 (Duffens Optical Inc).

What are the specifications of STCTA 12-80?

Key specifications for STCTA 12-80: General Characteristics Item Description: USED ON SLIT LIGHT,MDL. SL-6E; Part Name Assigned by Controlling Agency: SPRING SLIT LIGHT OPHTHALMIC USED ON SLIT LIGHT MDL SL-6E; End Item Identification: 6540-01-182-3770. 1 specification is documented in the U.S. Government catalog.

Is NSN 6540-01-246-3744 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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