Model: 1240006839557

Optical Instrument Lens

Properties:

Diameter
2.244 inches
Axial Thickness
0.354 inches
Equivalent Focal Length
4.576 inches
Back Focal Length
4.465 inches
Refraction Index
1.6110
Abbe Constant
58.800
Single Lens Style
Double convex
Individual Lens Style
Double convex
Element Left Surface Radius
5.524 inches
Element Right Surface Radius
5.524 inches
Material
Glass, optical, mil-g-174, class 1, grade c
Material
Glass optical
Material Specification
Mil-g-174, class 1, grade c military specification single material response
Fsc Application Data
Telescope, m105c, integrated with fire control equipment
NSN
6650-00-683-9557
Part Number
1240006839557
Description
Lens,optical Instrument
CAGE

An unmounted, transparent, color free lens which may be treated with a low reflection coating to increase light transmission. Includes single and compound elements. For items having two plane parallel surfaces, see window, optical instrument. Excludes reticle, optical instrument.

Part 1240006839557 NSN 6650-00-683-9557

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
21884
FIIG:
T271-E
Concept No.:
1
App. Key:
EA
Cond. Code:
2
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
057940
UFC:
33020
LTL:
RATING VARIABLE
LCL:
RATING VARIABLE
WCC:
744
TCC:
Z
SHC:
9
ACC:
Medical Supplies

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Schedule B and Export
  • Schedule B: 9018500000
  • SITC: 87225
  • End Use: Medicinal equipment
  • NAICS: 339115
  • USDA: 1

Freight Class: Other ophthalmic instruments and appliances and parts and accessories

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