NSN 6540-01-247-1279 — this item is cataloged by the U.S. Government under National Stock Number 6540-01-247-1279. Manufacturer of record part number: 40310 25542.
Also searched as6540-01-247-1279 ·
6540012471279 ·
NIIN 012471279 ·
01-247-1279 ·
FSC 6540 Ophthalmic Instruments, Equipment, and Supplies · CAGE 5S434 · 40310 25542
General Characteristics Item Description: FOR USE IN ADJUSTING THE EYEPIECE LENSES OF SLIT LIGHT MDL SL-6E; UNIT QTY 4
1 manufacturer part number on file
Manufacturer of record: Duffens Optical Inc
Identification
NSN: 6540-01-247-1279
NIIN: 012471279
FSC: 6540 — Ophthalmic Instruments, Equipment, and Supplies
FSG: 65 — Medical, Dental, and Veterinary Equipment
Primary part number: 40310 25542
Manufacturer: Duffens Optical Inc
General Description
The Rod,test,ophthalmic, cataloged under National Stock Number 6540-01-247-1279, 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
Parameter
Value
NSN
6540-01-247-1279
Primary Part Number
40310 25542
Item Name
Rod,test,ophthalmic
FSC / FSG
6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies
Manufacturer
Duffens Optical Inc
Status
ACTIVE
General Characteristics Item Description
FOR USE IN ADJUSTING THE EYEPIECE LENSES OF SLIT LIGHT MDL SL-6E; UNIT QTY 4
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 6540-01-247-1279?
NSN 6540-01-247-1279 is a Rod,test,ophthalmic, manufactured by Duffens Optical Inc, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
What part numbers are listed for NSN 6540-01-247-1279?
NSN 6540-01-247-1279 has 1 manufacturer part number on file: 40310 25542 (Duffens Optical Inc).
What are the specifications of 40310 25542?
Key specifications for 40310 25542: General Characteristics Item Description: FOR USE IN ADJUSTING THE EYEPIECE LENSES OF SLIT LIGHT MDL SL-6E; UNIT QTY 4; Part Name Assigned by Controlling Agency: ROD TEST OPHTHALMIC FOR ADJUSTING EYEPIECE LENSES OF SLIT LIGHT; End Item Identification: 6540-01-182-3770. 1 specification is documented in the U.S. Government catalog.
Is NSN 6540-01-247-1279 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.