Model: MIL1801

Optical Instrument Lens

Properties:

Diameter
Between 2.046 inches and 2.047 inches
Axial Thickness
0.630 inches and 0.118 inches
Compound Lensaxial Thickness
0.74803 inches
Compound Lens Edge Thickness
0.441 inches
Equivalent Focal Length
9.541 inches
Back Focal Length
8.445 inches
Front Focal Length
10.231 inches
Refraction Index
1.5170 and 1.7200
Abbe Constant
64.500 and 29.300
Compound Lens Style
Doublet
Individual Lens Style
Double convex and double concave
Element Left Surface Radius
-2.047 inches and 2.047 inches
Element Right Surface Radius
-2.047 inches and 11.100 inches
Material
Glass, optical, mil-g-174, class 1, grade b
Material
Glass, optical, mil-g-174, class 1, grade b
Fsc Application Data
Optical sighting and ranging equipment
NSN
6650-00-210-4387
Part Number
MIL1801
Description
Lens,optical Instrument
CAGE
06175

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 MIL1801 NSN 6650-00-210-4387

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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