Model: 1240006261891

Optical Instrument Lens

Properties:

Diameter
1.650 inches
Axial Thickness
0.100 inches and 0.610 inches
Compound Lensaxial Thickness
0.710 inches
Compound Lens Edge Thickness
0.531 inches
Equivalent Focal Length
6.532 inches
Back Focal Length
7.274 inches
Refraction Index
1.6490 and 1.6200
Abbe Constant
33.800 and 60.300
Compound Lens Style
Doublet
Individual Lens Style
Double concave and double convex
Element Left Surface Radius
2.656 inches
Element Right Surface Radius
1.663 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
Periscope, integrated with fire control equipment
NSN
6650-00-626-1891
Part Number
1240006261891
Description
Lens,optical Instrument
CAGE
A00AM

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 1240006261891 NSN 6650-00-626-1891

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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