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Optical Element Retaining Ring NSN 1240-00-159-4486

Item Description

A cylindrical item having an internally flanged diameter designed to retain a lens or window in the objective end, or a diopter scale at the viewing end of an optical instrument. It may have one or more of the following characteristics: internal thread or machined for a press fit, method of securing, and/or knurled periphery. For externally threaded items, see retainer, optical element. Excludes cell, optical element; nut, plain knurled; nut, plain round; and ring, retaining.

NSN 1240-00-159-4486 NSN: 1240-00-159-4486

Features and Characteristics

Outside Diameter
4.125 inches
Aperture Diameter
2.813 inches
Internal Flange Thickness
0.093 inches
Knurled Periphery
Not provided
Material
Aluminum alloy
Material
Aluminum alloy
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
001594486
NSN
1240001594486

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
212550-1
Cage Code:
10001
Status:
A
MSDS:
Part Number:
212550PC1
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 1240-00-159-4486
What are the manufacturers of nsn 1240001594486?
Does this nsn 1240001594486 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240001594486
A cylindrical item having an internally flanged diameter designed to retain a lens or window in the objective end, or a diopter scale at the viewing end of an optical instrument. it may have one or more of the following characteristics: internal thread or machined for a press fit, method of securing, and/or knurled periphery. for externally threaded items, see retainer, optical element. excludes cell, optical element; nut, plain knurled; nut, plain round; and ring, retaining.
Does nsn 1240001594486 contain any precious metals?
No precious metal content.
Does nsn 1240001594486 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240001594486?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
22585
FIIG:
T271-J
App. Key:
JC
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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