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Optical Element Retaining Ring NSN 6650-01-258-0811

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 6650-01-258-0811 NSN: 6650-01-258-0811

Features and Characteristics

Thread Class
2a
Thread Pitch Diameters
+3.6603/+3.6986 inches
Thread Direction
Right-hand
Thread Length
0.200 inches
Overall Length
0.780 inches
Outside Diameter
3.700 inches
Thread Size
3 45/64-32
Aperture Diameter
3.250 inches
End Application
1270-01-142-2855 target designator
Screw Thread Series Designator
Uns
Thread Location
External
Internal Flange Thickness
0.150 inches
Knurled Periphery
Not provided
Material
Steel
Material
Steel
Surface Treatment
Passivated
FSC
6650 Components And Accessories Test Equipment Optical Instruments
NIIN
012580811
NSN
6650012580811

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
13076701
Cage Code:
04939
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 6650-01-258-0811
What are the manufacturers of nsn 6650012580811?
Does this nsn 6650012580811 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 6650012580811
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 6650012580811 contain any precious metals?
No precious metal content.
Does nsn 6650012580811 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 6650012580811?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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