PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

VSFNCLens,ophthalmic,sphere

Volk Optical Inc · NSN 6540-01-530-1337 · FSC 6540 · No Item Name Available
Verified by PartsTable
NSN 6540-01-530-1337 — this item is cataloged by the U.S. Government under National Stock Number 6540-01-530-1337. Primary manufacturer part number: VSFNC.
Features
  • Lens,ophthalmic,sphere — FSC 6540
  • 5 verified cross-references
  • Primary manufacturer: Volk Optical Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Lens,ophthalmic,sphere, cataloged under National Stock Number 6540-01-530-1337, is classified within Federal Supply Class 6540 (No Item Name Available) of the Medical, Dental, and Veterinary Equipment group. The primary manufacturer of record is Volk Optical Inc. This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6540-01-530-1337
Primary Part NumberVSFNC
Item NameLens,ophthalmic,sphere
FSC / FSG6540 / 65 — No Item Name Available
ManufacturerVolk Optical Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 4
5935-00-056-77391170-02 INTERCHANGEABLE
Plug,tip
Birnbach Co Inc
8120-00-905-276161250-55014-101 INTERCHANGEABLE
Cylinder,compressed Gas,air,brea
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
5905-01-194-1495117-002 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Panametrics Llc
5895-01-472-503711700-2 INTERCHANGEABLE
Modem,communications
L3 Technologies, Inc. Div Communication Systems-West
Cross-Reference Index
Part NumberManufacturer
SUPERFIELD NC Volk Optical Inc (USA)
6540NCM139329 Defense Medical Standardization Board (USA)
VSFNC PRIMARY Volk Optical Inc (USA)
803776 Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
117002 Luneau SAS (FRA)
Related Parts
5935-00-056-7739INTERCHANGEABLE
PLUG,TIP
1170-02
8120-00-905-2761INTERCHANGEABLE
CYLINDER,COMPRESSED GAS,AIR,BREA
61250-55014-101
5905-01-194-1495INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
117-002
5895-01-472-5037INTERCHANGEABLE
MODEM,COMMUNICATIONS
11700-2

Frequently Asked Questions

What is NSN 6540-01-530-1337?

NSN 6540-01-530-1337 is a Lens,ophthalmic,sphere, manufactured by Volk Optical Inc, classified under FSC 6540 (No Item Name Available). Status: active.

What are the part numbers for NSN 6540-01-530-1337?

NSN 6540-01-530-1337 has 5 cross-referenced part numbers: SUPERFIELD NC (Volk Optical Inc), 6540NCM139329 (Defense Medical Standardization Board), VSFNC (Volk Optical Inc), 803776 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia), 117002 (Luneau SAS).

What NSN replaces 6540-01-530-1337?

There are 4 known substitutes for 6540-01-530-1337: 5935-00-056-7739, 8120-00-905-2761, 5905-01-194-1495 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of VSFNC?

Key specifications for VSFNC: Special Features: SUPER SERIES LENS, USED IN GENERAL RETINAL SCANNING; 95 TO 116 DEG FIELD OF VIEW; 0.76X IMAGE MAGNIFICATION; 1.3X LASER SPOT; 7MM WORKING DISTANCE; FOR SLIT LAMP DIAGNOSIS; WIDE FIELD OF VIEW, HIGH RESOLUTION; 30.2MM HOUSING DATA MM; Part Name Assigned by Controlling Agency: SPHERE WIDE FIELD PAN RETINAL EXAMINATION SUPER FIELD. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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