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Optical Instrument Window NSN 1240-00-641-2310

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 1240-00-641-2310 NSN: 1240-00-641-2310

Features and Characteristics

Width
83.950 millimeters
Thickness
8.000 millimeters
Length
129.920 millimeters
Bevel Depth
1.000 millimeters
Refraction Index
1.5240
Polished Surface
Both
Reflection Reducing Surface
Both
Polished Periphery
Not provided
Bevel Angle In Deg
45.000
Special Features
12.20 mm (0.4802 in.)radius, 4 corners
Material
Glass, optical, jan-g-174, type 523-586, grade c
Material
Glass, optical, jan-g-174, type 523-586, grade c
Fsc Application Data
Periscope mk 20 nod 6
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
006412310
NSN
1240006412310

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
279495PC11
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 1240-00-641-2310
What are the manufacturers of nsn 1240006412310?
Does this nsn 1240006412310 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240006412310
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 1240006412310 contain any precious metals?
No precious metal content.
Does nsn 1240006412310 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240006412310?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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