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Optical Element Retaining Ring NSN 5855-01-165-2177

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 5855-01-165-2177 NSN: 5855-01-165-2177

Features and Characteristics

Outside Diameter
2.060 inches
Aperture Diameter
1.840 inches
Thread Location
Internal
Internal Flange Thickness
0.125 inches
Knurled Periphery
Not provided
Material
Aluminum alloy, qq-a-250/11, t6
Material
Aluminum alloy 6061
Surface Treatment
Painted
Fsc Application Data
Night vision equipment, emitted and reflected radiation
FSC
5855 Emitted And Reflected Radiation Night Vision Equipment
NIIN
011652177
NSN
5855011652177

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
SM-D-850408
Cage Code:
0B107
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 9014900000
  • NAICS: 334511
  • SITC: 87412
  • Description: Parts & accessories for direction finding compasses and other navigational instruments and appliances
  • End Use (Code 22220):
    Marine engines, parts

Q & A

Frequently asked questions for NSN 5855-01-165-2177
What are the manufacturers of nsn 5855011652177?
Does this nsn 5855011652177 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5855011652177
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 5855011652177 contain any precious metals?
No precious metal content.
Does nsn 5855011652177 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5855011652177?
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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