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Optical Instrument Window NSN 1240-00-499-4247

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 1240-00-499-4247 NSN: 1240-00-499-4247

Features and Characteristics

Width
8.125 inches
Length
12.188 inches
Polished Periphery
Provided
Special Features
Transmittance 90% t avg 8.0 to 11.5 microns. Has mlar (multi-layer anti-reflection) coating.
Material
Germanium
Material
Germanium
Reference Number Differentiating Characteristics
As differentiated by boeing drawing number 10-30477-1 cage 82918
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
004994247
NSN
1240004994247

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
10-30477-1
Cage Code:
82918
Status:
A
MSDS:
Part Number:
4500052
Cage Code:
11536
Status:
A
MSDS:
Part Number:
16819-04
Cage Code:
22669
Status:
A
MSDS:
Part Number:
16819
Cage Code:
22669
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 1240-00-499-4247
What are the manufacturers of nsn 1240004994247?
Does this nsn 1240004994247 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240004994247
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 1240004994247 contain any precious metals?
No precious metal content.
Does nsn 1240004994247 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240004994247?
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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