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Optical Element Retaining Ring NSN 6650-00-789-8174

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 6650-00-789-8174 NSN: 6650-00-789-8174

Features and Characteristics

Groove Diameter
1.385 inches
Outside Diameter
1.750 inches
Aperture Diameter
Between 1.312 inches and 1.385 inches
Inner Groove Width
0.0620 inches
Mounting Configuration
Three 0.096 in. Diameter mtg holes equally spaced
Internal Flange Thickness
0.125 inches
Groove Location
Inside face of flange
Knurled Periphery
Not provided
Material
Aluminum alloy
Material
Aluminum alloy
Surface Treatment
Anodized, mil-a-8625, type 2
FSC
6650 Components And Accessories Test Equipment Optical Instruments
NIIN
007898174
NSN
6650007898174

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2475256
Cage Code:
53711
Status:
A
MSDS:
Part Number:
69301000
Cage Code:
72314
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 6650-00-789-8174
What are the manufacturers of nsn 6650007898174?
Does this nsn 6650007898174 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 6650007898174
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 6650007898174 contain any precious metals?
No precious metal content.
Does nsn 6650007898174 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 6650007898174?
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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