Model: 7577961

Optical Instrument Lens

Properties:

Diameter
2.218 inches
Axial Thickness
0.772 inches and 0.131 inches
Compound Lensaxial Thickness
0.903 inches
Compound Lens Edge Thickness
0.502 inches
Equivalent Focal Length
3.708 inches
Back Focal Length
3.288 inches
Refraction Index
1.5170 and 1.6490
Abbe Constant
64.500 and 33.800
Compound Lens Style
Doublet
Individual Lens Style
Double convex and meniscus diverging
Element Left Surface Radius
-1.709 inches and 2.563 inches
Element Right Surface Radius
-4.196 inches and 1.709 inches
Material
Glass, optical, jan-g-174, grade c
Material
Glass, optical, jan-g-174, grade c
Fsc Application Data
Telescope, integrated with fire control
NSN
6650-00-757-7961
Part Number
7577961
Description
Lens,optical Instrument
CAGE
19200

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 7577961 NSN 6650-00-757-7961

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:
U
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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