Model: 8644284

Optical Instrument Lens

Special Features:

Front and back surfaces coated with magnesium fluoride

Properties:

Diameter
Between 3.097 inches and 3.100 inches
Axial Thickness
Between 0.297 inches and 0.317 inches and 0.705 inches and 0.725 inches
Compound Lensaxial Thickness
Between 1.002 inches and 1.042 inches
Equivalent Focal Length
16.560 inches
Back Focal Length
15.807 inches
Refraction Index
1.6490 and 1.5880
Abbe Constant
33.800 and 53.400
Compound Lens Style
Doublet
Individual Lens Style
Double concave and double convex
Element Left Surface Radius
143.191 millimeters
Element Right Surface Radius
6.256 inches
Material
Glass, optical, mil-g-174, class 1, grade c, type 649-338 and glass, optical, mil-g-174, class 1, grade c, type 588-534
Material
Glass, optical, mil-g-174, class 1, grade c, type 649-338 and glass, optical, mil-g-174, class 1, grade c, type 588-534
Fsc Application Data
Collimator
NSN
6650-00-119-3966
Part Number
8644284
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 8644284 NSN 6650-00-119-3966

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:
TG
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
24.0 X 12.0 X 24.0
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
057940
UFC:
33020
LTL:
RATING VARIABLE
LCL:
--
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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