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Optical Instrument Window NSN 1240-00-171-4165

Item Description

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.

NSN 1240-00-171-4165 NSN: 1240-00-171-4165

Features and Characteristics

Diameter
45.000 millimeters
Thickness
3.000 millimeters
Bevel Depth
1.000 millimeters
Refraction Index
1.5171
Polished Surface
Both
Polished Periphery
Not provided
Bevel Angle In Deg
45.000
Material
Glass, optical, jan-g-174, type 517-645, grade c
Material
Glass, optical, jan-g-174, type 517-645, grade c
Fsc Application Data
Telescope mk 63 mod 0
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
001714165
NSN
1240001714165

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
202369PC6
Cage Code:
10001
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 9803200000
  • NAICS: 990000
  • SITC: 93100
  • Description: Military equipments not identified by kind
  • End Use (Code 50060):
    Military apparel and footwear

Q & A

Frequently asked questions for NSN 1240-00-171-4165
What are the manufacturers of nsn 1240001714165?
Does this nsn 1240001714165 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240001714165
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.
Does nsn 1240001714165 contain any precious metals?
No precious metal content.
Does nsn 1240001714165 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240001714165?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
10908
FIIG:
T271-F
App. Key:
FA
Cond. Code:
2
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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