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Optical Instrument Window NSN 1240-00-557-0716

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 1240-00-557-0716 NSN: 1240-00-557-0716

Features and Characteristics

Width
29.710 millimeters
Thickness
5.800 millimeters
Length
50.670 millimeters
Bevel Depth
2.360 millimeters
Refraction Index
1.5230
Polished Surface
Both
Reflection Reducing Surface
Both
Polished Periphery
Not provided
Bevel Angle In Deg
30.000
Special Features
Corners rounded w/0.744 in. Radius, astigmatism not to exceed 2.5 millidiopters, sperical power not to exceed 6.5 millidiopters
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
Telescope, panoramic t149e1
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
005570716
NSN
1240005570716

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
A7632368
Cage Code:
19200
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 1240-00-557-0716
What are the manufacturers of nsn 1240005570716?
Does this nsn 1240005570716 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240005570716
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 1240005570716 contain any precious metals?
Precious metal content is unknown.
Does nsn 1240005570716 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240005570716?
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
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