PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9-312-2048Lens,ophthalmic,compound

Square D Co Monroe Plant · NSN 6540-01-088-7889 · FSC 6540 · No Item Name Available
Verified by PartsTable
NSN 6540-01-088-7889 — this item is cataloged by the U.S. Government under National Stock Number 6540-01-088-7889. Primary manufacturer part number: 9-312-2048.
Features
  • Lens,ophthalmic,compound — FSC 6540
  • Sphere Curve Inside Diopter: 0.75 PLUS MAXIMUM
  • Cylinder Curve Inside Diopter: 4.00 MINUS MAXIMUM
  • Height: 68.0 MILLIMETERS NOMINAL MM
  • Light Transmission: UNTINTED
  • Thickness: 2.2 MILLIMETERS NOMINAL MM
  • Width: 65.0 MILLIMETERS NOMINAL MM
  • Material: GLASS SINGLE VISION
Applications
  • Applications requiring Glass Single Vision construction
General Description

The Lens,ophthalmic,compound, cataloged under National Stock Number 6540-01-088-7889, 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 Square D Co Monroe Plant. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: PR.

Technical Specifications
ParameterValue
NSN6540-01-088-7889
Primary Part Number9-312-2048
Item NameLens,ophthalmic,compound
FSC / FSG6540 / 65 — No Item Name Available
ManufacturerSquare D Co Monroe Plant
StatusACTIVE
Sphere Curve Inside Diopter0.75 PLUS MAXIMUM
Cylinder Curve Inside Diopter4.00 MINUS MAXIMUM
Height68.0 MILLIMETERS NOMINAL MM
Light TransmissionUNTINTED
Thickness2.2 MILLIMETERS NOMINAL MM
Width65.0 MILLIMETERS NOMINAL MM
MaterialGLASS SINGLE VISION
Supplementary FeaturesUNCUT
Style DesignatorROUND-RECTANGULAR WITH ROUNDED CORNERS
Diameter65.0 MILLIMETERS MINIMUM MM
Cross-Sectional Shape StyleSPHEROCYLINDER COMPOUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssuePR
Verified Substitutes 1
6520-01-388-42520203 INTERCHANGEABLE
Wheel,abrasive
Shofu Dental Corp
Cross-Reference Index
Part NumberManufacturer
9-312-2048 PRIMARY Square D Co Monroe Plant (USA)
Related Parts
6520-01-388-4252INTERCHANGEABLE
WHEEL,ABRASIVE
0203

Frequently Asked Questions

What is NSN 6540-01-088-7889?

NSN 6540-01-088-7889 is a Lens,ophthalmic,compound, manufactured by Square D Co Monroe Plant, classified under FSC 6540 (No Item Name Available). Status: active.

What are the part numbers for NSN 6540-01-088-7889?

NSN 6540-01-088-7889 has 1 cross-referenced part number: 9-312-2048 (Square D Co Monroe Plant).

What NSN replaces 6540-01-088-7889?

There is 1 known substitute for 6540-01-088-7889: 6520-01-388-4252. Verify interchangeability with system specifications before substitution.

What are the specifications of 9-312-2048?

Key specifications for 9-312-2048: Sphere Curve Inside Diopter: 0.75 PLUS MAXIMUM; Cylinder Curve Inside Diopter: 4.00 MINUS MAXIMUM; Part Name Assigned by Controlling Agency: LENS OPHTHALMIC COMPOUND WHITE CROWN GLASS PLUS 0.75 - 4.00; Height: 68.0 MILLIMETERS NOMINAL MM. 12 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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