Model: 248578PC3-4

Optical Instrument Lens

Properties:

Diameter
1.161 inches
Axial Thickness
0.098 inches and 0.142 inches
Compound Lensaxial Thickness
0.240 inches
Compound Lens Edge Thickness
0.320 inches
Equivalent Focal Length
5.761 inches
Back Focal Length
5.759 inches
Front Focal Length
5.909 inches
Refraction Index
1.5110 and 1.7200
Abbe Constant
63.500 and 29.300
Compound Lens Style
Doublet
Individual Lens Style
Meniscus converging and double concave
Element Left Surface Radius
-8.944 inches and 1.970 inches
Element Right Surface Radius
-3.228 inches and 1.970 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
NSN
6650-00-382-1808
Part Number
248578PC3-4
Description
Lens,optical Instrument
CAGE
10001

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 248578PC3-4 NSN 6650-00-382-1808

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:
--
WCC:
653
TCC:
Z
SHC:
9
ACC:
Engineer 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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