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Optical Element Retaining Ring NSN 6650-01-206-5857

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 6650-01-206-5857 NSN: 6650-01-206-5857

Features and Characteristics

Outside Diameter
2.880 inches
Aperture Diameter
2.060 inches
Mounting Configuration
4 holes 0.129 in diameter through c/bore 0.218 in diameter x 0.140 in dp; 4 plcs equally spaced at 90 degrees
Internal Flange Thickness
0.150 inches
Knurled Periphery
Not provided
Material
Aluminum alloy, qq-a-225/8, alloy 6061, t6
Material
Aluminum alloy 6061
Surface Treatment
Anodized, mil-a-8625
FSC
6650 Components And Accessories Test Equipment Optical Instruments
NIIN
012065857
NSN
6650012065857

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2306122
Cage Code:
22380
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 9018500000
  • NAICS: 339115
  • SITC: 87225
  • Description: Other ophthalmic instruments and appliances and parts and accessories
  • End Use (Code 21610):
    Medicinal equipment

Q & A

Frequently asked questions for NSN 6650-01-206-5857
What are the manufacturers of nsn 6650012065857?
Does this nsn 6650012065857 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 6650012065857
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 6650012065857 contain any precious metals?
No precious metal content.
Does nsn 6650012065857 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 6650012065857?
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
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