Model: 1811216-1

Optical Instrument Window

Properties:

Diameter
52.300 millimeters
Thickness
3.670 millimeters
Surface Finish
Polished
Bevel Depth
1.270 millimeters
Refraction Index
1.5230
Polished Surface
Both
Dispersion
58.6 angstroms
Reflection Reducing Surface
Both
Polished Periphery
Not provided
Bevel Angle In Deg
1.350
Material
Glass
Material
Glass
Fsc Application Data
Indicator, altitude, flight instruments
NSN
6650-00-990-5732
Part Number
1811216-1
Description
Window,optical Instrument
CAGE
55972

A color free item of transparent or translucent material, usually optical glass, having specific light dispersive and refractive properties. This item must have two plane-parallel surfaces and is designed for use in an optical instrument to provide a barrier to foreign matter and/or permit light transmission in or to the optical system.

Part 1811216-1 NSN 6650-00-990-5732

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
10908
FIIG:
T271-F
Concept No.:
App. Key:
FA
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

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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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